Diffuser 101: A Proven Definitive Guide

Diffusers are one of the best ways to enjoy the benefits of essential oils. It is a safe, secure & effective way to diffuse your favorite scents into your environment. 

If you are looking for:

  • Better Health
  • Optimum Wellness
  • Want to increase focus
  • Want to change home aroma

This guide will take you through all you need to know about essential oil diffusers – from how they work and what they do, to where you should place them in your home or office space.

However, there is more to these devices than meets the eye!


Basic Of Diffuser

What is a diffuser?

A diffuser is a device that uses heat, light, water, and oil to diffuse essential oils.

It is not an air freshener—there’s no fake fragrance involved in the process. Instead, it produces microscopic particles of essential oil molecules suspended in the air you breathe.

Essential Oil Diffuser

Diffusers come in all shapes and sizes, from basic plastic vials with reeds to pretty wooden boxes and sleek designer nebulizers.

What does a diffuser do?

Most aromatherapy diffusers are made to evaporate droplets of water and essential oils. Here are 5 scientific benefits you should know:

What does a diffuser do?

1. Relaxed breathing: The release of microscopic droplets in the air makes it easier for your lungs to breathe them in. 

When inhaled, the therapeutic effects of essential oils can be felt more quickly and deeply throughout your body. 

That’s just one reason why aromatherapy is so effective when combined with other therapies like massage or meditation!

2. Improved mood: Diffusing long-term improves your overall well-being. 

It promotes feelings of joy by releasing neurochemicals that trigger positive feelings within minutes—and hours later too! 

The scent also plays a crucial role in how we feel, which is why aromatherapy can be so powerful in combating stress and anxiety.

3. Relieves headache: It has been a scientifically proven essential oil diffuser to relieve a headache when diffuse the right scent for you.

For instance, peppermint essential oil can help clear sinuses and ease tension while lavender eases stress, helping your head stop hurting in minutes!

4. Boosts immunity: In fact, adding one or two drops of essential oil into a bowl of steaming water creates soothing steam that opens up breathing passages and clears congestion from your sinuses when inhaled directly! 

This allows the lymphatic system, your body’s natural defense system against illness and diseases to function better by releasing toxins via heavy perspiration.

5. Relaxes mind and body: Diffusing for long periods of time can also help with your overall mood because it activates the olfactory bulb, an essential part of our brain that detects scents through nerve fibers.

This sends signals to other parts of the brain that make you feel relaxed, calm, refreshed, and even happy—it’s a win-win situation!

How does a diffuser work?

A diffuser is an electrical device that emits water vapor infused with the essential oil of your choice into the air. 

It uses ultrasonic vibrations to break up the essential oils into micro-particles which are then dispersed into the surrounding air. 

When inhaled by anyone in the surrounding area, these tiny oil particles are absorbed into the bloodstream for therapeutic benefits within minutes.

Essential oil diffusers work best for this purpose because they deliver nature’s goodness directly to you—your nose! 

No artificial fragrances are involved or added so there’s no false advertising either…sniff sniff!

FUN FACT: Ultrasonic Diffusers are silent, don’t use heat, and won’t affect the integrity of your oils like heating them in a pan will.

4 Different types of diffusers which the majority of people love!

There are many types of diffusers to choose from, but it’s best to buy one that will suit your purpose. Here are some types you can look for:

1. Ultrasonic Diffuser

Ultrasonic Diffuser

This kind of diffuser is made up of an ultrasonic oscillator and coolant plate where the water reservoir is placed.

It uses high-frequency electrical vibrations with a frequency range of 2.5 MHz which turns the water into a micro-particle mist that gets dispersed into the air.

How to use an ultrasonic aroma diffuser ?

To use this type, just pour in about 200ml of tap or distilled water (tap water may clog its filter) and add 5-10 drops of essential oil/s before turning it on using the knob at the back. 

Just note that ultrasonic types don’t work well with thicker oils cold-pressed essential oils are usually your best options for this type.

2. Evaporative Diffuser

Evaporative Diffuser

This kind of diffuser works by using a fan to push air through a wick saturated in water and essential oil, which then releases it into the surrounding air like mist.

They’re inexpensive and long-lasting (some can last up to 3 years!), plus there’s no risk of electrical shock when it’s used correctly. 

Replace the wick when the airflow diminishes and make sure to clean out any residue leftover in its reservoir after each use to avoid bacteria growth and contamination.

3. Candle Diffuser / Oil Warmer Lamp

Candle Diffuser

Just like the name suggests, this type of diffuser uses heat from a candle to evaporate water and essential oils which then release their fragrance into the surrounding air. 

They come in many different shapes & sizes so you can buy one that suits your home perfectly. 

Just don’t leave it unattended or near anything flammable, because you wouldn’t want conflagrations burning down your house now would ya?!

4. Reed diffuser 

Reed diffuser

What is a reed diffuser ?

Reed diffusers are a popular choice because it’s easy to make and they can last for months without the need to replace any parts.

Reed Diffuser has long sticks which absorb oil from bottles and disperses to air slowly.

How to use a reed diffuser?

All you have to do is buy an oil-absorbent reed or bamboo stick, tie a string around its top and insert it into the bottom of a bottle filled with water and essential oil.

Make sure that there’s enough room between the reeds so that your fragrance can disperse throughout the room! 

Just note that these types aren’t as efficient as other forms since there’s no fan used which means that some of your oil goes to waste (it just evaporates into thin air).

How do diffuser sticks work?

The sticks are actually a type of wick, made from a natural material called a reed.

They come in a variety of different sizes and colors – and some are even made from bamboo!

The sticks soak up a special fragrance oil, which can disperse later into the air.

Still, if cost is no issue then go ahead and try this type since you won’t be needing replacements after every few days!

Check It Out:

Best Oils for Diffuser Necklace

How Do Diffuser Bracelets Work

Diffusers that are best suited for the Home, Office, and car

Ultrasonic Diffuser Small to Medium Size Room
Evaporative Diffuser Large Area
Car Diffusers Designed for Car
Heat Diffuser Small Area BUT Not Ideal

Ultrasonic (uses water): These diffusers are great for small to medium-sized rooms since they make use of water and essential oils to produce a steady stream of mist which is how it releases the scent. 

Since these don’t have a fan, you won’t need to worry about any strong gusts that might blow around your entire house.

IN FACT, you can keep this next to any surface without worrying about the smells being too concentrated in one spot or being too dispersed either! 

This type of diffuser is also perfect if you want something easy-to-clean plus they last longer than other types so there’s less maintenance involved when using them at home.

Evaporative (uses electricity): If you want to cover large areas then go for an evaporative diffuser instead since these can spread out the scent of your essential oils more effectively than ultrasonic ones. 

These types of devices work by heating up the liquid until it sprays out as mist which makes them perfect for bathrooms, living rooms, and even kitchens! 

They also come with multiple settings (fan speeds) so you can decide how much airflow you want compared to how strong you want the fragrance to be.

Car Diffusers: If you’re looking for something that lets off a moderate scent on the go then check out car diffusers instead since these are typically made with bright LED lights along with scented pads that you simply need to change every now and again. 

There are even some models that let you hook it up to your car’s lighter instead of using batteries.

They come with everything you’ll need like the USB cord, adapters, and even clips so there’s no installation necessary!

Heat (uses electricity): These diffusers use heat along with water and essential oils to give off a nice scent which is why this type isn’t ideal for your bathroom since the steam from the hot water might damage their internal components over time. 

You can buy them if you’ve got a smaller space in mind but they’re not as effective either when it comes to spreading out the smell so keep this in mind before spending money!

BUYER’s GUIDE : How to choose a diffuser?

Material: Check out the materials used in the diffuser itself since this affects how well it’ll hold up over time.

Avoid buying ones made with cheap plastic or even metal if possible since these will break down faster than other models which means replacement parts might cost you more money either way! 


PRO TIP: Durable models normally made with wood (normally Bamboo) plus they’re great at diffusing essential oils for hours without breaking down so check these out instead!

Size: Check out the dimensions of each diffuser before buying it online since you might not want something really large if you’re only going to use it for a small space. 

If you’ve got a car then most models will fit just fine but some evaporative ones require that you use the lighter slot so keep this in mind before picking one.

<< Check out the ideal size for different places. >>

CAR 2.64 x 2.64 x 3.43 inches
BEDROOM 3.94 x 5.51 x 3.94 inches
OFFICE 6.4 x 5.4 x 5.4 inches
BATHROOM 4 x 4 x 7 inches

Coverage – Not every diffuser is made to cover a certain size area so you’ll have to find one that fits your room/office/car.

CAR 10 m2
BEDROOM 10-13 m2
OFFICE 10-60m2

Price:  As we mentioned earlier, price is normally determined by how many features it has and it’s capacity which means you can find something within almost any budget! 

Features: Check out any buttons and features since some might come with timers, built-in lights, and even USB ports (if it’s an evaporative model) for powering other devices.

There are also some models that let you turn off the LED lights completely or simply change their color which can be useful if you don’t want your room to be too bright all the time!

How to use a diffuser?

Check out the best way to diffuser oil below video:


Step #1: Fill the water tank with enough water since this is what creates mist that lets off a nice scent. 

You can use regular tap water in most cases but distill might be better in some cases so check out the user manual first before filling it up.

Step #2: Insert the diffuser’s top section into the bottom one so they fit together perfectly then switch on your chosen setting to start diffusing!

Step #3: Change the pads after every few days or when you notice that they aren’t releasing any more oils (normally 30+ drops) which you can buy separately here.

Step #4:  Keep an eye on the water level and fill it back up whenever necessary with regular tap water after every few days.

Step #5: To clean the diffuser, simply remove all parts and wash them with some warm water and dish soap (or any other cleaning solution) plus you can use a soft sponge or cloth for this. 

Remember to never mix bleach or vinegar with these since they might damage your diffuser’s frame over time!

Step #6: Make sure to let everything dry completely before putting them back together plus make sure to clean and wipe down the outside of your diffuser too if needed. 

You shouldn’t have to do this often but doing so will keep your whole room smelling good without having any problems.

Step #7: You can also use a dedicated brush or damp cloth for cleaning any hard-to-reach areas of the diffuser.

How to set up a diffuser?

First, you’ll have to assemble the diffuser by attaching the top and bottom sections. 

Make sure that they fit together perfectly then insert the screws on the base of the unit before adding water up to a certain level. 

Next, you can add your favorite essential oil or aromatherapy blend to the diffuser itself which has an absorbent pad on it.

Before turning it on for anywhere between 30 seconds to 5 minutes depending on your desired intensity.

Once this is done, you can make use of any buttons available since most models come with either continuous misting settings or timed sessions (normally 1, 3 & 6 hours) plus some even let you choose anything in-between! 

After selecting one, you can rest easy knowing that your diffuser will diffuse oils into the air around it whenever necessary.

It’s only normal to wonder how much power these things use so keep in mind that most models come with their own AC adapters which means they’ll always run when plugged in. 

The best part is that this feature makes them perfect for nighttime use even when nobody else is around since they won’t disturb anyone sleeping!

One of these things is getting to enjoy clean air at all times plus you don’t have to rely on any other methods if this sounds like something you’d be interested in doing. 

Many people choose to diffuse scents at night or while they’re away which might be a good idea since your house will always smell nice even with these on.

When to use a diffuser?

It’s a good idea to diffuse oils at night especially when you can’t afford to make any noise in your house.

The best part is that most models come with an automatic shutoff feature which means they’ll automatically turn off whenever the water runs out so this means that even if you doze off, your diffuser will keep working just fine!

Another great time to use them is while you’re meditating plus some people like using these before starting their day by inhaling deeply and smelling good things. 

I’ve even known friends who use them every time they play their favorite games or actively hang out with others since it creates a calming environment which nobody else might notice but would definitely appreciate anyway.

While these aren’t loud per se, it’s not recommended to use them when you’re trying to read or study since anything from headaches from the noise to even distractions can become a thing if you do.

Most diffusers come with one-button features which make them easy to use for anyone but this doesn’t mean that they’ll stop working if someone else around you wants to play games or listen to music while using their laptop or phone.

Some of these models even have an auto-shutoff feature in case anything goes wrong.


How to clean a diffuser? ( Using Soap Water )

Cleaning your diffuser is important, do not skip the cleaning process. 

This will ensure that you are using a clean diffuser and prevent any harmful bacteria from growing inside it.

Step #1:  Turn off the device and unplug it from the socket. 

Step #2: Detach all parts of the diffuser including reed sticks, atomizer, or ceramic disc cartridge if available.

Step #3: Fill a tub or sink with warm water and add a few drops of liquid dish soap (mild).

Place all the diffuser parts in this soapy water and let it soak for 5-10 minutes.

Step #4: Rinse each part thoroughly, drain off excess water and wipe down with a soft cloth/ paper towel. 


Step #5: Place back reed sticks/ceramic disc cartridge/atomizer into your diffuser if you had removed these while cleaning. 

You can leave the cover open for drying (airing).

PRO TIPS: If there is an essential oil residue in it or sticky/solid then use a cotton swab to clean it.

How to clean oil diffuser without vinegar? ( Using Lemon Extract )

There are several alternative options for this as well, one of them is using a concentrated lemon extract.

Step #1: Pour about 2 tsp of the extract inside your diffuser and fill it with water. 

Step #2: Shake well before every use because lemon extracts have a tendency to separate from other liquids over time.

Step #3: Turn on the diffuser and let it run for 10-15 minutes continuously so that particles left behind settle down into the liquid surface.

Then turn off or keep it set on low intermittent mode so that contents stay mixed within & do not settle down at the bottom.

Step #4: Rinse all the residue and leave it for air dry.

How to clean oil diffuser with vinegar? (Using Vinegar)

Check Out Alternative Instructions Below

Step #1: Unplug the unit from its power source and remove the water tank.

Step #2: Take the vinegar and fill it in the water tank up to its maximum level. 

Step #3: Plug the unit back in and turn it on for about two minutes so that vinegar can completely clean your diffuser machine. 

Step #4:Turn off the device again, unplug it and remove its base plate.

Step #5: Rinse out vinegar with regular tap water or just let the water run through it for a few minutes. 

Remove any excess moisture with a soft cloth or paper towel by wiping down its external surface area from top to bottom including all of its buttons.

After that, you will see how much easier this process has been compared to using other methods which can be really time-consuming!

How to clean a diffuser with citric acid?

Cleaning your diffuser with citric acid is more effective than vinegar.

Citric acid will dissolve the hard water deposits, while vinegar will only soften them up. 

Unfortunately, it takes longer for the citric acid to work its magic on hard water stains, so you have to be patient during this step!

Step #1: Prepare a cup of hot distilled water & add 2 tablespoons of citric acid powder or drop directly into the water bottle. 

You can also use lemon juice instead of citric acid in this step.

Step #2: Pour the citric acid-water mixture into your diffuser & turn it on for about an hour. 

If you have a plastic bottle, don’t use hot water to dissolve citric acid or it will melt! 

Optional: Step #3: Use white vinegar instead of distilled water in step 1 (Steps 1 and 3 are interchangeable). 

This will work towards softening up any hard water deposits; however, make sure that you clean your diffuser thoroughly afterward because the vinegar smell will be left behind! 

If you use lemon juice instead of citric acid, don’t run it through another cycle with distilled water because the acidic properties in the lemon juice might affect your unit (Step 3 is interchangeable).

Optional: Step #4: You can also add a drop or two of liquid dish soap to help emulsify the hard water deposits.

Step #5: Run it through at least 2 cycles with clean tap water before you start diffusing again.

How often to clean the diffuser?

It is recommended to clean your diffuser once every 2 weeks (whether you use it daily or not). 

For whatever reason, if you don’t clean your diffuser at least twice a month, then more dirt will accumulate over time which could make the oils not as potent.

A good general rule of thumb is to clean your diffuser after 10 hours of use for longevity.

How to store your diffuser?

The most important thing to remember is that you should not store your essential oil diffuser in an area where it will be exposed to water, sunlight, or excess humidity. 

After each use, just wipe the device down with a cotton swab dipped in some alcohol (preferably Isopropyl Alcohol) or even rubbing alcohol.

If your diffuser has more than one part that detaches for cleaning purposes, then please make sure you put all of the pieces together before storing anything away so there won’t be any confusion.

Do NOT submerge any portion of the device underwater or put it through the dishwasher!


What are the best essential oils for diffusers?

Lavender Oil calming and relaxing effects, can increase mental alertness & concentration
Bergamot Oil can be used as an antidepressant or mood enhancer
Peppermint Oil increases focus and energy improves circulation to face
Lemon Oil prevents infection and bacteria growth; great for acne breakouts & oily skin
Tea Tree Oil antifungal properties, eliminates dandruff flakes & moisturizes scalp & hair
Eucalyptus decongestant and respiratory support; may help slow heart rate in those with high blood pressure
Sweet Orange can improve mood/energy levels and relieve stress

NOTE: These recommendations are not meant to replace any advice given to you by your doctor or medical practitioner. Please consult them if you need any other information regarding essential oils, aromatherapy & using diffusers!

How many drops of essential oil in diffuser?

It depends on the size of your diffuser and how many drops you personally like to put into it.

If you’re using a 10ml essential oil diffuser, then up to 7 drops would be okay (5 is still okay as well).

15 ml diffusers can handle up to about 10 drops, while 30 ml ones can go as high as 15 or 20! 

The general consensus among those who I follow and those who post their opinions on the matter is that 7-10 drops of any essential oil per 100 ml of water in a diffuser is considered safe!

How long does diffuser oil last?

You can expect most diffusers to last anywhere from 4-6 hours before the water completely evaporates. 

The time it takes your diffuser to run out of water will vary depending on how big or small your device is and what type you have. 

How to make diffuser smell stronger?

#1 Use a blend of oils that have a stronger odor.

 For example, try lavender with mint or myrtle with lemongrass.

#2 Shake the lemon oil thoroughly before use as it can sometimes be too thick to work well through a diffuser and need some extra help to diffuse properly.

#3 Diffuse for a shorter amount of time so that the scent doesn’t have time to dissipate as quickly. 

#4 Diffuse at night when you’re not going in and out of the room like during the day, since diffusing for an hour or two at night is usually enough to fill an entire space.

Advanced Hacks + Tricks

Diffusers Pros and Cons


  • Gently diffuses oils into the air at a slow rate.
  • Extends oil life because exposure to light and oxygen is eliminated when used with a dark glass dome.
  • Some models have the capability of turning on/off at specific times during the night if desired.
  • Some diffusers have a USB port so can plug into your laptop or desktop computer to diffuse while working from home or on business trips.


  • The initial cost of some models can be prohibitive for some budgets.
  • Maintenance, cleaning, and replacement parts add to the overall cost over time.  
  • If you don’t clean, some units may develop mold growth inside which can be unhealthy if not properly cared for according to manufacturer specifications!  
  • Some units are not as quiet as you might expect them to be based on the sound of ultrasonic nebulizers, but again that can depend on brand and model.  

Diffuser Safety Tips

  • Be sure your diffuser is UL listed to be used with essential oils.  If not, don’t use it!
  • Never leave a lit candle or oil-burning lamp unattended.
  • Keep out of reach of children and pets who are not familiar with what it does. 
  • If using in the bedroom, set to run only during sleep times or if you are present to avoid exposure of scents overnight.  
  • Some units may come with timers which limit session times so pay attention to what your unit offers and follow the manufacturer’s instructions accordingly.

Highly Asked Question

What size diffuser for bedroom ?

The size of the diffuser depends on what you want to achieve.

Bigger Room = Larger Output
Diffuser Size Guide


  • If you’re looking for something that can run overnight in your bedroom, go for no less than 100mL capacity.

Make sure to clean it regularly.

  • For small bedrooms or personal office desktops, anything below 30 mL should be fine (1-3 drops). 

If using more than 3 drops, expect it to last maybe 4 hours at best. 

It’s not magic; it’s science. <– totally true! lol… 


  • A note about wattage: Typically, higher wattage means a stronger aroma, but all electric diffusers have a sweet spot where they work optimally. 

It is not recommended to exceed this limit as it may damage or ruin your diffuser.

  • Most electric/plug-in/wall diffusers are around 500mA (0.5A) @120v ~ 60Hz, with an optimal range of 1A-1.6A (for most Ultrasonic).

Higher than that will result in burning out the motor faster; lower than that and you won’t be getting optimal performance.)

HACK #1: To determine the size of the reservoir needed to diffuse continuously for eight hours at 30 milliliters per hour, you must divide 8 by 0.3, which would equal 26 milliliters.

HACK #2: To determine the size of the reservoir needed to diffuse continuously for eight hours at 50 milliliters per hour, you must divide 8 by 0.5, which would equal 16 milliliters.

These numbers assume that the essential oil is only coming in contact with water and diffusing into the air.

  • But if additives such as Vitamin E or Almond Carrier Oil are included, this will decrease run time because these substances will absorb into the liquid and not evaporate into the atmosphere.
  • If additives like these are used it is best to begin with a larger reservoir capacity because they will reduce run times significantly.

Where to place essential oil diffuser in bedroom ?

There are two schools of thought on this. 

  1. One is to put it near your bed so you can smell the oils as you fall asleep.
  2. The other is to place it in an out-of-the way spot where it won’t bother you or your partner. 

NOTE: Wherever you choose, just make sure it’s not under a shelf or low hanging object that could be damaged by water if an accident occurs. 

Diffuser Placement

The best position for your aroma diffuser 110/120v is

  • near the head of your bed (if possible)
  • behind the top pillow (for nighttime diffusion) with fan running (or very low) for maximum therapeutic benefits.

How to fill a diffuser?

The best way to fill your reservoir is with distilled water. 

This will cut down on mineral buildup over time, which can damage the motor in your aroma diffuser 110/120v. 

Many people also use sea salt or rock salt because this substance does not leave any residuals behind after evaporation, but it is corrosive so it should never be used with essential oils that are irritating to the skin.

Distilled Water Vs Salt Water

If you choose to use only distilled water and no additives, your run time will be longer than if you put in salt or essential oils.

Because all of those substances absorb into the liquid and evaporate out of the air instead of just evaporating into the atmosphere.

You can also add these oils directly to the reservoir and let them diffuse slowly throughout the day, but adding salt or oil may reduce run times considerably so it’s best to avoid these substances if possible.

What can i put in my diffuser besides oil ?


  • Many people add water and a few drops of vanilla extract to give their rooms a lovely aroma in the winter when there aren’t any blossoming citrus trees around. 

Just be careful because some extracts are oilier than others, so if you use vanilla bean extract you might have to add more water or it could clog your machine.

  • Citrus peels also make great air fresheners when added directly to the reservoir with just enough water to cover them.

But you will want to run this for only one cycle because too much citrus in an aroma diffuser 110/120v may damage the motor.

  • You can also add water and essential oils to your diffuser if you want a targeted scent or need relief from allergies. 

Just remember that there is no way to control how much oil goes into your room with this method other than turning off the diffuser when you feel like you have had enough.

What to do if you don’t have a diffuser ?

Don’t worry if you don’t have an essential oil diffuser or one that you can’t afford at the moment because there are many ways to enjoy the benefits of oils even without a diffuser.

If you’re looking for a quick fix, just open your bottle of oil and take a deep breath in.

The fastest way to experience the effects of oil is to smell it or diffuse it but there are other options that are very inexpensive so let’s look at them now.

  • One option would be adding 6-10 drops of your favorite essential oil to boiling water, cover with a lid and let sit for 10 minutes.

Since this method doesn’t allow the mist to go into the air, clear everyone out of the room before you try to use it.

  • Aromatic bathing is another great option if you don’t have a diffuser/120v or the money to buy one right now.

Because all you need are your favorite oils, Epsom Salts & Carrier Oils.

This is especially good for those who suffer from joint pain or arthritis.

  • Just mix 10-15 drops of essential oil with 3 cups Epsom salt and 1/4 cup carrier oil in your tub, soak for 20 minutes and let the magic begin.

How to get more mist from diffuser?

  • If you’re looking for more mist out of your diffuser/120v, make sure to clean it at least once a week with rubbing alcohol and let it dry completely before using again.
  • You should also be careful when adding drops of oil in your diffuser because too much can cause the motor to overheat and stop working (it happened to me the first time I used mine only after 45 minutes).
  • If your diffuser starts smoking or smells funny, unplug it immediately and do not use it until you’ve fixed the problem.

How to fix a diffuser?

The most important thing to remember when cleaning your diffuser is that the essential oil molecules are very small and will easily be clouded by other things floating around in the water. 

If you don’t take care of your diffuser, you will not be able to see where the oil is going and whether or not it is being properly atomized into the mist.

Generally speaking, there are two parts to a diffuser:

1) The Water Tank

2) The Base Unit

There’s also a rubber ring between these two components that serves as a seal to prevent leakage from one component into another.

In terms of maintenance, it’s best to clean out this rubber ring because over time oils tend to err away at this rubber seal until it is no longer capable of creating a proper seal.

Cleaning the (Rubber) O-Ring: When you unscrew the base unit from the water tank, you should notice that there is a rubber ring located in between these two components.  

This rubber ring should be soaked in hot water with dish soap for about 1 hour to loosen up any dirt or oils that have settled into it.   

Be careful not to stretch this rubber ring since it will eventually snap during the reassembly process – if this happens, simply buy a new one!  

You can find replacement rings on Amazon because they are pretty standard and widely used throughout many different diffusers on the market today.

Cleaning The Water Tank: It’s best to clean out the water tank with either alcohol or vinegar prior to running it through your dishwasher.

This will help remove old oils that may have settled into the water tank over time (and prevent their return).

Cleaning The Base Unit: There really isn’t much you can do except using a cleaning wipe from time to time to keep oil from building up on the exterior surfaces of your diffuser.

Why is my diffuser leaking?

However, there are many factors that can cause the water reservoir to overflow and lead to leakage.  

For instance, if you fill-up the tank all the way up to capacity (and not allow for any ventilation space), then your diffuser may begin spilling oil everywhere which obviously isn’t good!

If this happens, simply remove some of the clean water from the tank until there’s enough room for air to travel through the top of the unit – this should prevent overfilling, over-spillage, and leaking in most cases.

Why is my Diffuser beeping?

There are three possible reasons why your diffuser may be beeping.  

First, it could mean that the reservoir is empty and needs to be refilled with water. 

Second, there’s a problem with the power cord being plugged in properly so this should also need to be checked. 

Third, your diffuser has overheated – if this happens simply allow your device to cool down before using it again!

Why does my diffuser keep turning off?

If there isn’t enough water in the tank then this could also lead to your diffuser turning off (or beeping). 

This is because the oil outlet must be submerged under at least 2 inches of water.

The second reason why your diffuser may keep shutting off is if the unit itself becomes too hot which can happen if you use it for long durations or leave it on without any water present in the tank. 

If this happens simply allow time to cool down before using it again!

Why is my diffuser not misting?

There are several reasons why your diffuser might not be misting.  

The first reason is that there’s a problem with the power cord being plugged in properly so this should also need to be checked.

Second, the water tank isn’t filled up to capacity – remember that you can’t use a diffuser without enough water is present in the reservoir!

If you have followed all of these steps and still have problems, read on for further possible causes.

Remember: Make sure that your essential oil diffuser has been assembled correctly before using it for the very first time. This includes plugging in any attached cords into their proper places!

The second reason why your diffuser may turn off is if the unit itself becomes too hot, which can happen if you use it for long durations or leave it on without any water present in the tank.

If this happens simply allow time to cool down before using it again!

How long can you leave a diffuser on?

If you leave your diffuser on for more than 2 hours at a time then this will most certainly cause problems with the unit!

This is because the oil reservoir needs to be refilled with fresh water every couple of hours.

What essential oils should not be diffused?

We do not recommend diffusing the following essential oils:

( Please Take Medial Consultation Before Diffusing Any Essential Oils )

Basil (Ocimum basilicum) – May irritate skin and should NOT be diffused while pregnant.

Lavender (Lavandula angustifolia) – As it is a high 1,8-Cineole chemotype, it may cause breathing problems in young children. It should also not be used on anyone with epilepsy due to its camphor content.

Bergamot (Citrus bergamia) – The Bergapten content in the oil may cause photosensitivity resulting in skin irritation and sunburn.

It should not be used prior to exposure to ultraviolet light.

Though sold as a “Bergaptene Free” oil, it can still contain 3% of this compound by law, which is enough for sensitization to occur after daily use for two weeks.

Also, avoid during pregnancy due to possible stimulating properties on uterus muscles.

Eucalyptus (Eucalyptus blue gum, E.globulus) – Though not directly contraindicated with diffusing the pure oil, eucalyptus can trigger a headache in some individuals when used topically on the skin.

Studies have shown that 2-4% of people have an allergic reaction to it when applied to the skin.

Sage (Salvia officinalis or S. lavandulaefolia)- In clinical trials, sage has been shown to cause uterine contractions and should therefore be avoided during pregnancy and lactation.

In addition, because of its 1,8-cineole chemotype, it must not be used by anyone who suffers from epilepsy or high blood pressure.

Tea Tree (Melaleuca alternifolia) – Avoid during pregnancy. Maybe an emmenagogue (induces or assists menstruation), and because of the high 1,8-cineole content may interfere with fetal development.

Lime (Citrus aurantifolia)- May irritate skin and should not be used while pregnant.

Are diffusers bad for your lungs?


Diffusing essential oils will only work on the surrounding air.

Since diffusers atomize small particles in the oil and release them into the surrounding air, this means that they are not inhaled but only released in the immediate vicinity of your nose and mouth.

What essential oils are safe to diffuse when you have a dog?

According to Essential Oil Safety: “Generally, dogs should not be exposed directly to essential oils.

Although they have a highly developed olfactory sense and certain oils may have a stimulating or exciting effect, ingestion can be dangerous.”

The following oils are safe for diffusing:

  • Cedarwood Atlas (Cedrus atlantica)
  • German Chamomile (Matricaria recutita)
  • Lavender (Lavandula angustifolia)
  • Neroli Bigarade from Morocco (Citrus aurantium var. Amara flos.)
  • Rose Otto Bulgaria (Rosa damascene)
  • Vetiver Haiti (Vetivera zizanoides)

Please note that this list is not exhaustive and further research should be done before using these oils.


Can you use fragrance oils in a diffuser?

No, never use a synthetic fragrance (or even natural for that matter) in an essential oil diffuser.

Synthetic fragrances are created in the lab and will do harm to your body’s cells if it enters them.

How long should you diffuse essential oils??

Use your nose as a guide.

When you first start diffusing, it’s likely that you won’t be able to smell the scent of the oil in the air.

However, after about 10 minutes (or less if you’re using more than one oil), begin sniffing around to see how strong the scent is.

You want to diffuse long enough for people in your home or office to be able to smell it when they pass by or enter a room; this usually takes between 10 and 30 minutes.

If someone can still detect an aroma after 2 hours, consider diffusing for a shorter time period next time around.

Is it safe to diffuse essential oils around my fish tanks?


Fish tanks need to be filtered, oxygen-rich water to survive.

The stream of air from a diffuser could cause problems with the filtration and oxidation of the water in your tank as well as introduce oils into the water that could harm your fish.

In addition, always do a test run first because some essential oils can be harmful to your fish’s health if they come into contact with them.

Is it good to leave an essential oil diffuser on while you sleep?


Species of eucalyptus are known to cause respiratory issues, skin irritation, and other problems.

The last thing you want is for them to be diffused into the air while you sleep.

It might feel relaxing to use an oil like lavender before bed but it’s important not to breathe in too much of it.

Or apply it directly to your skin while you’re asleep because this can lead to impaired coordination when you wake up which may make falling asleep again difficult.

How long can a 100ml oil diffuser stay on until it runs out of oil?

The 100ml diffusers can run for about ten hours before they need to be refilled.

What essential oils are scientifically and clinically proven for health?

It is important to note that while there are dozens of essential oils that have had some clinical or scientific testing performed on them, proving their effectiveness in certain situations doesn’t necessarily mean they can be used for any purpose.

For example,

lavender has been clinically tested and found to be effective in treating burns when put directly on the skin but it hasn’t been proven safe to ingest orally so you shouldn’t treat a headache with it.

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