Best Essential Oil Diffuser Reviews 2017

Some people still think of patchouli and hippies when they hear the words “essential oil”. But you don’t need to be a peace-loving dude with dreadlocks to use essential oils- society is embracing the health benefits of using an essential oil diffuser.

These days, you can find diffusers in offices, medical practices, schools and homes.

But with many now available on the market, how do you choose the best essential oil diffuser to buy?

To help you find the best diffusers for essential oils, Home Health Living has researched and evaluated to come up with a helpful guide and the best essential oil diffuser reviews. We have narrowed down our list to the top essential oil diffusers worth buying- you can find the results of our research further on in this post.

Here is a comparison table showing you all of the essential oil diffusers we have reviewed, with links to read more or buy the diffuser:

Best Essential Oil Diffuser Reviews 2017


QUOOZ® ROCKANO” Ultrasonic Aroma Diffuser and Humidifier

If you’re looking to make a statement with your essential oil diffuser, then the Quooz Rockano is the best ultrasonic essential oil diffuser for your home. It’s stylish and unique design makes it a talking point as well as a functional and effective diffuser and humidifier. Although it is a little pricier than most other oil diffusers on the market, its unique design makes it a decorative piece in any home.

It has two functions: regular mist, which operates up to 10 hours or strong mist, which operates up to 5 hours. It can hold 200ml of water. The Rockano uses ultrasonic technology, with the electronic vibrations breaking down the water into fine particles which are then combined with the essential oil to create a gentle mist. This ensures that the essential oil retains its maximum health benefits- it is not broken down by heat.

The soothing LED light can be set at either constantly on, or fading in and out. The unit has an automatic shut-off mechanism which kicks in when it is empty, and unlike other essential oil diffusers, there is NO beep.

Although the unit looks like it is made of glass, it is made of 100% BPA-free plastic. Its unique contemporary design makes it look like a diamond, and it comes in three stylish colours: toffee, cobalt blue and peach. Fortunately, its wide base means that it is sturdy and not so easy to knock over- this makes the Rockano suitable in a family home.

The Rockano can be used as a humidifier however it is not as effective as an actual humidifier- it just does not emit enough moisture to increase the humidity in a room.


Long operation

Two mist settings

Stylish design


No timer


InnoGear® 300ml 9-10 Hours Aromatherapy Essential Oil Diffuser Ultrasonic

What we love about the InnoGear 300ml ultrasonic essential Oil diffuser is that it is a five-in-one-product. It combines everything we love about oil diffusers, humidifiers, air purifiers, ionizers and night lights. You choose the functions that you require.

It uses ultrasonic technology, meaning that the water and oils are not heated. The diffuser uses electronic frequencies to create vibrations that break down the water into micro-particles that are then infused with the scent of the essential oils, and then transformed into a microscopic mist. Other diffusers and humidifiers heat the water to create a steam vapor.

InnoGear uses ultrasonic technology because it does not damage the properties of the essential oils, meaning that you receive maximum health benefits from the essential oil blend. Ultrasonic technology also means that less oil is used during dispersion- it creates a more concentrated dispersion. You require less oil without compromising the aroma. The oils are not destroyed by heat.

Do you want to help relieve nasal congestion, or even disguise offensive smells? Add an essential oil blend and the unit becomes an essential oil diffuser. Do you need to add moisture to dry air during the winter months to help with asthma prevention? Leave out the essential oils and the unit becomes an instant humidifier and can also purify the air. It also has an ionizing function, releasing negative ions which attach themselves to the positive ions in the air, balancing out the harmful effects of allergens such as bacteria, mold and pollen.

The InnoGear 300ml Essential Oil Diffuser also has a soothing LED mood light that changes colour.

The unit can hold about 300ml of water (unlike other diffusers that only hold 100ml of water) and has two mist controls: weak or strong. Due to the larger water capacity, the mist covers an area of up to 269 square feet. This is ideal if you are looking for the best oil diffuser for large room use.

To fill the unit with water, simply lift up the cap, remove the cap and fill with water. Then replace the cap.

Unlike many other humidifiers, the InnoGear does not include a filter and cleaning the unit is very easy and can be done with a cloth and dish soap.

On the weak setting, operation is around 9 hours. There is also a timer with 4 settings: 1 hour, 3 hours, 6 hours, and always ON. Select your timer and the unit will switch off automatically after the set time. If you leave the unit operating without a timer, there’s no need to worry about keeping an eye on the water levels- the unit beeps and there is an automatic shut-off feature which shuts the unit once it runs out of water. But the beeping can be a distraction in the middle of the night!

The light setting allows the LED light to fade through the 7 different colors or you can choose the light to remain on a chosen color. The LED light and diffuser can operate simultaneously, or you can choose to operate the diffuser without the light, or the light without the diffuser. Children find the night light comforting!

The dispersed mist is cool to the touch, and because the diffuser does not burn the essential oils, more of the therapeutic benefits of the oils are dispersed. As there are no naked flames or hot water, the InnoGear is safe to use around children, the elderly or pets and is a natural, chemical-free appliance.

Comes with 18 months warranty.


Long run time

Has a timer

Money back guarantee


No information regarding run time on strong setting



InnoGear 200ml Aromatherapy Essential Oil Diffuser- Wood Grain

InnoGear’s 200ml essential oil diffuser in wood grain combines effective diffuser features with a stylish design. If you appreciate good home décor and design and are not a fan of plastic-looking objects, then the InnoGear wood grain diffuser would be the best essential oil diffuser for you.

Although the unit is made of plastic, it has a wood grain appearance similar to essential oil diffusers used in day spas and at health resorts. For health conscious people, the plastic does NOT contain harmful BPA.

The 200ml capacity makes this oil diffuser a mid-sized option suitable for bedrooms, a small living room or office area. It operates for up to 7 hours and has two settings available: strong or weak. The timer settings allow you to set the unit for either 1, 3 or 6 hours, or you can let it run until the water runs out. It has an automatic shut-off function that shuts the unit once it reaches a certain water level. This allows you to switch on the unit and not worry about remembering to turn it off.

When refilling the unit, the top half of the diffuser is simply lifted rather than turned or unscrewed like other essential oil diffusers. This makes refilling very easy.

If you prefer to just use the unit as a humidifier, it operates the same way but just do not add any essential oils to the diffuser. This way, the unit can emit a cool mist that helps increase moisture in an otherwise dry-air room. This is useful in hot climates where the air is dry but you don’t want to use a warm mist humidifier to increase humidity. The ultrasonic technology used by the InnoGear means that a cool mist is dispersed- you increase humidity without increasing heat in a hot climate!

The unit is whisper-quiet and uses ultrasonic technology to create a cool scented mist. Ultrasonic technology is when electronic vibrations are created to break down water into fine particles to allow a mist to be dispersed rather than a strong vapor. This is an alternative to using heat to break down water into steam. Heat damages the properties of essential oil. With ultrasonic technology, the user will have maximum health benefits from the essential oils.

The InnoGear 200ml wood grain ultrasonic essential oil diffuser also has an LED light in 7 different colours, or you can choose to operate the diffuser with the light switched off.

A 2 year warranty is available as is a 45 day money back period


Great option for a small room

Lovely wood grain appearance

Longer warranty


Short run time


Arrela Portable Essential Oil Diffuser, 70ml USB

Arrela has come up with a solution for travelers wanting to use an ultrasonic essential oil diffuser and humidifier. The Arrela 70ml USB mini essential oil diffuser comes with a USB cable that connects the diffuser with your PC or with the cigarette charger in your car.

Its compact size nicely fits inside a standard car cup holder. The Arrela portable essential oil diffuser has a water capacity of 70ml which is slightly more than the water capacity of other portable diffusers currently on the market. Its maximum operation time is around 3 hours. After this time, simply refill the unit with more water.

There is a timer setting for 30, 60, 120 and 180 minutes, with an automatic shut-off function once the water has run out.

Ultrasonic technology is used to create a fine cool mist combined with your blend of essential oils. This means that heat is not required to turn the water into mist particles. With other types of diffusers that use heat, the water is heated in order to create a steam. But the heat damages the essential oils. Using ultrasonic technology preserves the important elements of the oils, bringing you maximum health benefits.

There is the option of just using the diffuser without any essential oils. In this manner, the unit is simply a humidifier used to disperse moisture into a dry space. There is also a warm white LED light which can either be left on or switched off, and there is a low and high setting too. When the light is off, the diffuser can still be operated.


Portable option

Easy to use


Must contact manufacturer for warranty information

Only one mist setting


TaoTronics Essential Oil Diffuser Ultrasonic Humidifier 100ml

An elegant and simple to use essential oil diffuser, the TaoTronics 100ml diffuser offers a quiet operation with a water capacity of 100ml. It has an LED light with 7 different colors.

The cool mist is created using ultrasonic technology which breaks down the water into small particles that are then mixed with your added essential oil blend. The result is a gentle mist which can be set as continuous, or intermittent mist which operates every 30 seconds. When the water level runs low, the unit shuts off automatically. You no longer have to worry about remembering to switch off the unit before you leave your home.

If you choose not to add essential oils to the unit, it can operate as a small humidifier adding moisture to a dry room. Due to its small size and water capacity, its use as a humidifier is more effective in a smaller, more personal space than a traditional humidifier.

There are rubber feet at the bottom of the unit, giving it enough grip to prevent the unit slipping or accidentally being knocked over.

A one year warranty is also available.


Has intermittent mist setting

Popular diffuser


Short run time

Short warranty

No timer


Arespark 500ml Essential Oil Diffuser Aroma Diffuser with 4 Timer Settings 7 LED Color Light

The new model of the Arespark 500ml essential oil diffuser is the best essential oil diffuser for large room use. Its large 500ml capacity makes it an excellent choice for long diffusion, with operation up to 10 hours. Once the water runs out, the unit shuts off automatically.

There are 4 timer settings: 60, 120, 180 minutes and continuous flow (which disperses mist until the water reservoir is empty). There is also an LED light which illuminates in 7 different colors, or you can choose the light to illuminate in just one color.

As with most advanced oil diffusers, the Arespark works using ultrasonic technology to convert water into particles of mist. The mist is mixed with the essential oils you have added, and then dispersed into the air. No heating elements are used. The essential oil retains its maximum health benefits due to not being disturbed by heat.

To fill up the diffuser with water, it is recommended that you use the 150ml cup that is supplied with the diffuser. You can leave the diffuser in its regular position and then simply lift the top part of the diffuser and fill using your cup. Trying to fill the diffuser at a kitchen sink or faucet would be too difficult- the large capacity of the reservoir would make the unit heavy to carry once it is full of water.

You have the option to use the diffuser as a humidifier, by not adding any essential oils to the unit. The Arespark works as an effective humidifier due to its size and water capacity, although it is not as effective as an actual humidifier.

There is a one year warranty.


Great for large rooms

Large water tank capacity

Long run time of 10 hours



Average warranty

Aromyst Ultrasonic Glass Diffuser (Black) – Essential Oil Aromatherapy

The majority of essential oil diffusers on the market are made of plastic, and the Aromyst is no exception. However, we are pleased that its outer shell is made of glass as this makes the diffuser look a lot more stylish than ordinary plastic.

The Aromyst Ultrasonic Glass Diffuser is a great option for the home or office, and its stylish black glass design blends in with your décor. Its design is based on the torch ginger flower which is a flower native to the South Pacific. This is definitely a great choice for those who are conscious of style or who operate a business and would like a diffuser that appears professional.

Advanced ultrasonic technology is used to break down the water and oils into fine particles, resulting in a dispersion of cool mist. This allows the user to experience the full health benefits of the essential oil that is added. The unit DOES NOT come with essential oil.

The bottom of the unit features three padded feet which help make the unit sturdy and stable.

It is recommended that the oil diffuser be cleaned at least twice a week, to prevent the build-up of oils which may affect the performance of the unit.

It has two time functions: the continuous mist function allows operation up to 4 hours while the intermittent option allows up to 8 hours operation, with the mist being dispersed every 10 seconds. The water reservoir can hold 70ml, making this the best essential oil diffuser for a small room, office or space. There is an automatic shut-off function which shuts the unit once the reservoir is almost empty.

As with other diffusers, the Aromyst can be used as a humidifier by not adding any essential oils however its effectiveness as a humidifier is not on par with an actual humidifier.

Apart from the power button which stays lit, the Aromyst does not light up like other diffusers which is great for those who use their diffuser while sleeping and prefer darkness.

The Aromyst comes with a one year warranty.


Stylish design

Two mist settings

Only the button lights up (great if you don’t like bright lights)


Small water tank capacity

No timer


Zen Breeze, Essential Oil Diffuser, 2017 Model Aroma Humidifier, 14 Color Shades, Best Wood Grain, Ultrasonic Whisper Quiet Cool Mist Aromatherapy

If you’re looking for an economical and compact diffuser, then the Zen Breeze 2016 model could be the best essential oil diffuser option for you. It is a small unit with a water capacity of around 100ml and operation time up to 3 hours.

The Zen Breeze is great for hiding odours from the kitchen, or for use in a small bedroom or apartment. It is also recommended for those wanting an oil diffuser to use at work in a small work space.

Although the Zen Breeze is small in size and has a smaller water capacity, it does emit a large amount of mist.

The Zen Breeze has been designed to use ultrasonic vibrations to change the water and essential oils into a fine mist- this means that heat is not used to create the mist. The benefit of this is that you are left with a cool mist that is safe to use around young children and pets. Heat normally destroys essential oils however by using ultrasonic technology, you are receiving the maximum health benefits from your essential oil diffuser.

Other features include an LED light in 7 different colours, quiet operation and the unit is easy to refill and keep clean. There is an automatic shut off function that shuts off the unit once the water has run out.


Long run time

Has a timer

Large water tank capacity


Must contact manufacturer for warranty information


Housmile 3rd Version Aromatherapy Essential Oil Diffuser- 600ml Wood Grain Cool Mist Ultrasonic Humidifier – Whisper Quiet with Auto Shut-off Function

Not many essential oil diffusers can hold as large a capacity of water as the Housemile 600ml essential oil diffuser can. This impressed Home Health Living the most- the large water reservoir means that the unit can operate up to 15 hours! This is ideal to use in an office or other work environment, when you are too busy working to keep checking and refilling the oil diffuser.

Once the water level drops to a certain point, an indicator light flashes and lets you know and then the unit automatically shuts off. The unit comes with a small cup to use when refilling, however you would be better off using a larger cup or jug to avoid having to make so many trips back and forth between a tap and where the diffuser is located.

Also note that the maximum line indicator on the unit is actually a sticker, and it is known to peel off. Some users make a small mark with a permanent marker so that they know where the maximum line is.

If design is important to you, the wood grain appearance suits those who like a natural looking essential oil diffuser, even though this product is made entirely of plastic.

Home Health Living recommends this unit for those who prefer a longer lasting operation time. Note that the amount of mist that is dispersed is not a great amount to fill a very large space, despite the reservoir’s capacity.


Excellent for large rooms

Large water tank capacity

Long run time


Must contact manufacturer for warranty information

No timer


Finding The Best Essential Oil Diffuser

Aromatherapy using essential oil diffusers has great health benefits. It is an effective and natural alternative to traditional medicines, and also provides a way to add a pleasant, natural aroma to your home.

Home Health Living promotes the use of natural alternatives in finding the best health solution for you. A diffuser for essential oils will allow you to reap the health benefits from and enjoy the pleasant aroma from each essential oil blend.

If you would like further information, please read through our guide below.

What Is An Essential Oil Diffuser?

Essential oil diffusers disperse aromas from essential oils into a room or space. The natural scent creates a unique ambience depending on the blend of oils used. It is the basis of aromatherapy (also known as essential oil therapy), which is healing therapy using natural plant extracts and oils.

Aromatherapy aims to promote a healthy balance between the body, mind and spirit.

Essential Oil Diffusion: How Does It Work?

Essential oil diffusion can occur in a few different ways.

The most basic way is by adding a few drops of essential oils onto a clean tissue. For example, sometimes I place drops of lavender oil onto a tissue and place it under my pillow to help me sleep.

Steam diffusion involves boiling water and pouring it into a container, and adding a few drops of essential oils. The steam generated by the water carries the aroma of the oils into the room. For example, some people place a few drops of eucalyptus oil into a bowl of boiling water to create a steam bath. They then place their face over the steam and inhale the aroma. This is said to help relieve nasal congestion.

Candle diffusion involves the use of a tea light candle which heats the essential oils and disperses the aromas into the room.

Ultrasonic diffusion is now the most popular and effective way to disperse essential oils. Ultrasonic technology creates vibrations that break down water and essential oils into fine particles of mist which are then dispersed. This creates a cool mist that carries the aroma. Heating elements such as those found in steam diffusers damage the essential oils. By using ultrasonic technology, your essential oil blend is retaining maximum health benefits- it is not being damaged by heat.

Aromatherapy is no longer something to be experienced only at a day spa or wellness resort. With the availability of essential oil diffusers, anyone can recreate the ambience of a day spa and reap the health benefits of essential oil diffusion in the comfort of their own home.

So You Want To Buy An Essential Oil Diffuser?

Choosing the best diffuser for essential oils can be mind-boggling, with so many brands and models to choose from.

It’s important to know what to look for when buying an essential oil diffuser.

You will also need to buy your own essential oils as diffusers do not come with the oils included.

Here we look at a few important factors to consider when buying a diffuser.

1. Size of the space

We recommend that you decide what amount of space you would like the diffuser to cover. Once you have decided if it is a small, medium or large space, you need to then consider the output levels of the diffuser you are considering buying. Smaller output levels means that the mist is much finer, and may not suit a large space. A larger output spout allows more mist to be dispersed, which means you may be able to cover a larger area. Make sure you choose the best oil diffuser for large room use.

2. Operation time

Not everyone has the time to be constantly refilling an empty diffuser water reservoir. If you are a time-poor person, you may want to consider buying an essential oil diffuser that holds a larger capacity of water. You can find diffusers with up to 600ml water capacity.

Also important is the strength and mode of the flow of mist. Many diffusers allow you to set the variability of the flow of mist. You can sometimes choose an intermittent mode, where mist is dispersed for 30 seconds, and then stops for 30 seconds. This allows the overall operation time to be much longer.

People using an essential oil diffuser in a work space prefer a longer operation time. When you’re at work, you’re too busy to be worrying about refilling your oil diffuser!

3. Humidifiers

Although many essential oil diffusers claim to be humidifiers, they are not as effective as a traditional humidifier. Traditional humidifiers do not use essential oils, therefore many use heating functions to be able to create a stronger vapor that can be warm. Humidifiers are better at increasing moisture levels in the air than essential oil diffusers.

Although an ultrasonic diffuser for essential oils may add a small amount of moisture in the air, if increasing humidity is important to you then a traditional humidifier would be a better option. For more information about humidifiers, read our post on the best humidifiers for each room in your home.

4. Noise levels

One of the many complaints that people have about essential oil diffusers is the noise levels. Whether a diffuser is quiet or not is subjective.

Most diffusers make a sound similar to water boiling in a kettle. Some may find this noise calming and relaxing, while others find this distracting especially when trying to sleep at night. If noise is of concern to you, especially at night, then we recommend that you do not leave your essential oil diffuser in your bedroom but in another room close by.

Also note that most diffusers make a beeping sound when the water has run out. Again for some people this can be annoying if it occurs in the middle of the night. If this is the case for you, we recommend that you buy a diffuser that operates for at least 8 hours- that way, you will wake up before the unit is empty and will not hear the beep.

5. Maintaining your unit

Although we all like the idea of setting and then forgetting about your essential oil diffuser. But to keep it operating at the best level, you will need to clean your diffuser every few days.

What happens if you do not keep your diffuser clean?

There will be a build-up of oils in the diffuser, especially around the dispersion spout. This build-up means that less mist will be dispersed by the diffuser, or the diffuser may not disperse any mist at all. You may not notice the scent from your essential oils.

There can also be a build-up of bacteria or mold, especially if the unit has not been used for a few days but still contains water. It is a good idea to regularly descale the diffuser so that it is clean and germ-free and able to operate properly.

6. Refilling an essential oil diffuser

When it comes time to refilling an ultrasonic essential oil diffuser, there are some important points to remember. Many people complain about difficulties with refilling a diffuser.

Oil diffusers can be opened up either by twisting and turning the top of the diffusers, or simply lifting it off. There are pros and cons for either option.

The twist and turn option ensures that the lid is always securely in place. This is great if you have young children who may accidentally knock over a diffuser. If the unit has a “lift off” lid, most of these only sit on top of the unit and can easily be knocked over.

When you are opening up the diffuser, sometimes condensation results in water droplets on the inside cover of the diffuser. This might mean that when you remove the lid, drops of water will spill onto the surface around the diffuser. Condensation cannot be avoided but just keep this in mind when removing the lid.

Also think about the size and weight of the diffuser, especially the weight after filling it with water. If you carry your diffuser to a tap for refilling, will it be heavy to carry back to where it normal stays when being operated? The larger the water capacity, the heavier the diffuser will be.

It is usually a good idea to carry water from a tap to the diffuser. Some oil diffusers come with a complimentary cup for refilling the water, but usually the cup only holds a small amount of water. This might mean several trips between the tap and diffuser. You could use your own cup or jug to only need one trip between the tap and diffuser.

7. The design of the essential oil diffuser

Most diffusers for essential oils have the same main features and functions, so the real difference will be in the appearance and design. Look for a diffuser that will fit in with the décor in the room. Think about your own personal style. If you are using the diffuser in a workspace, think about what your other colleagues or customers/clients would like in a design.

You can choose a diffuser that blends in with other décor and room finishes. Or you can choose a diffuser that makes a real statement and becomes a fashion accessory or talking point.

There are so many designs to choose from: wood grain appearance, ceramic oil diffusers, glass outer cover, domes, cyclinders, modern, sleek, frosted glass.

In conclusion

One final word when shopping for diffusers for essential oils: if you prefer to make your choice based on other customer reviews on Amazon, keep in mind that some of the positive reviews are from people who have received the product for free in exchange for a review of the product. Therefore, some of these reviews may be biased.

On the other hand, some of the negative customer reviews are from people who have not chosen the best diffuser for essential oils to suit their personal needs or have not used the oil diffuser properly. Home Health Living’s best essential oil diffuser reviews  should give you a better idea of the diffuser that is right for you. 

If you would like further information, here is a great article by Dr Mercola outlining some health benefits of using essential oils.


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