What Is The Best Essential Oil Diffuser? -Top 10 Reviewed

best essential oil diffusers

You have probably gone to a friend?s place before and the instant you breathed, there was a sensation, calming, that you closed your eyes and allowed the air to flow freely through you. You did not just fall in love with the aroma but also wanted it. Aroma triggers the brain to produce certain hormones, relieve pain or boost moods. Apart from the delightful calm and relaxing effect it gives, there are also ??health benefits ? psychological, mental and emotional. Essential Oil Diffusers help disperse the aroma given off by essential oils into the air. However, the process of getting the best oil diffuser that will work best for you can be tiring. While some diffusers are more suitable for large rooms, some work best in a small-sized apartment, and that is a factor amidst others. That is why I have put together the top ten diffusers on the market, including the pros and cons to guiding your choice.

Best Diffuser Essential Oil Comparison Chart






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Innoo Tech



Green Air


















Now Foods






ZAQ Lite Mist


Top 10 Best Diffusers for Essential Oils.

As a seasoned therapist, I have my pick of the bunch. For clients who ask me what I would choose as the best home diffuser or the best scent diffuser, I have taken the time out to personally review some of the diffusers in the market. The truth is that most diffusers are never really the same. Some come with special features, different from the others to make it perform more effectively. (I already assume you have the best essential oil to diffuse) The following best essential oil diffuser reviews should guide you when making a purchase.

1. Innoo Tech Essential Oil Diffuser, Humidifier Aromatherapy

This product is by far one of the most versatile humidifiers you can find. It helps to purify the air, preventing germs and dust through its ultrasonic operation. It also works as a humidifier, and this ensures that your living room never get dry and stuffy. You will also get refreshed skin condition in the dry winter days. You can enjoy a pleasant aroma that enhances the mood and alleviates stress after work long hours. This device was also designed for aesthetic gratification ? the power of appealing colors. It has seven different colors -- Green, Dark Blue, Red, Yellow, Pink, Light Blue, White ? adjustable to dim or bright to suit your mood. Kids would also find the device a worthy companion at bedtime.

Innoo Tech Diffuser has three working modes that are intermittent mist (30 seconds interval between operations), continuous mist and lights only. This is to suit individual preferences. This is a good gift idea for friends or family who need aromatherapy.


  • An addition of a measuring cup.
  • Auto shutoff when water runs out.
  • Easy to clean.
  • Silent operation.
  • Portability; meaning it can be taken anywhere for use ? vacations or office.
  • 45-day refund policy.
  • 18 mouths warranty available for customers.

2. GreenAir? Spa Vapor with a diffuser

This product, which has its material from ceramics, sleek and stylish, is an ultrasonic diffuser. It can also work effectively as a humidifier, reduce dry skin, relieve foul odors and the likes. It is efficient for small spaces, (office, child?s room, spar) as it cannot diffuse much quantity of oil. It gives an ultra-fine mist and comes with six soothing light choices ? red, purple, green and blue ? that are optional. It can run continuously for about five hours and has a coverage area of 250sqft. The device is designed to shut off automatically when the unit runs out of the water.


  • Easy operation for beginners.
  • Dual operation mode (mist or lights only)
  • Compact design.


  • Loud operation (not suitable for those who hate noise though it could be oddly soothing.

3. QUOOZ Lull Aromatherapy Essential Oil Diffuser

One thing that stands out with the Quooz Lull diffuser is its efficient oil conservation. Just six drops of essential oil can get the device running for up to 7 straight hours. This feature is a result of the high water capacity of the unit?s base that can carry up to 200ml of water. This quantity is well-utilized for 8-10 drops of essential oil. I would suggest you use only the best essential oils for this unit. It doubles as a humidifier and can reach up to 300sqft.


  • Noiseless Operation.
  • Efficient oil conservation.
  • Auto shutoff when water cartridge is empty.
  • High water holding capacity.
  • Proper for many room sizes.
  • Stylish design.
  • Ease of cleaning and usage.


  • Lack of auto timer.

4. URPOWER? Diffuser 2nd Version Aroma Essential Oil Cool-Mist Humidifier

Released after the success of the first version, the second version released holds more powerful features than the first version of the product. There is a multiple led option on the device ? lavender, turquoise, green, yellow, and pink. There is a mist button that turns the device on and can be adjusted to your personal preferences. The color option allows you to select your preferred color or change the colors at random. The portability of this unit makes it a worthy companion for journeys and proper for use in offices and homes.

It has a water-holding capacity of 100ml and can cover between 150- 350sqft for up to 6 hours. To prevent excess water, a measuring cup has been added to allow for correct measurement. Care should, however, be taken so that water doesn?t get to the air outlet hole by the side of the unit. Also, many users have complained their device stopped working after they touched the electronic board while cleaning. You should note that as well. Without adding essential oil, the unit can function as a humidifier.


  • Silent operation.
  • Auto shutoff.
  • 45 days refund policy with 18 months additional warranty.

5. d?TERRA? Diffuser ? Petal Nebulizer

Coming from a best-rated essential oil diffuser manufacturer, this is certainly a device to watch out for. It is also a nebulizing diffuser that I would recommend for beginners in aromatherapy. The unit has a compact and stylish design that can help beautify where its intended usage is. Despite its small size, it can cover a large of up to 330sqfts and comes with an adjustable mist condition and timing. You can decide on 1, 2, or 4 hours of continuous diffusion. Putting the diffuser in your bathroom can replicate the effect of a spa, allowing to enjoy fragrance and moisture, The small and compact size makes it easy to carry, and a wide base means it will not tilt not fall over. This device can also work to sooth a sick person or as an excellent humidifier, especially for a child with cold or congestion.


  • Compact and stylish design
  • Silent operation
  • Soft mist
  • Excellent health benefits
  • Timing Controls
  • Ease of cleaning and maintenance
  • 90 days warranty.


  • Lid slips easily.

6. PureSpa Deluxe

When it comes to having an impressive positive review, this product is a chart topper. It has a water-holding capacity of 100ml and is efficient enough to cover 250sqft for at least 7 hours. The unit has a pleasant fragrance that eliminates unwanted odors like tobacco smell, pet odors, improve moods and can even double as a humidifier to prevent dry skin and chapped lips. The unit has purple, green, yellow, orange and blue color options and works silently. The unit can be used with or without the oil, meaning it can work as a humidifier when there is no oil. It also has negative ions to relieve stress or improve moods.


  • Pleasant fragrance
  • Auto shutoff
  • Stress reliever
  • Classic design
  • Vibrant lights
  • Two-year warranty


  • Replacement of button with a pressure touch that does not always respond.
  • Audible noise.
  • Customers have complained about a drop in battery life after four months.

7. Riverock Essential Oil Diffuser by Deneve?

The design of this diffuser is appealing to the eyes. It employs advanced technology to do its work as a vapor essential oil diffuser. The unit is designed to be a healthy solution to cold, flu, etc. and to give customers a sense of satisfaction anytime they use the product. It can be used in different room sizes, and can efficiently cover up to 250sqft. The device also operates discreetly, meaning you can have your good rest with any disturbance. It has a long lasting operation of up to 5 hours. The unit gives about different color variants that can be adjusted based on customer preferences.


  • Attractive design
  • Impressive running time
  • Excellent health benefits
  • Silent operation
  • Versatile operating modes.
  • Ease of use and cleaning.


  • Limitations to the use of citrus oil.

8. NOW? Foods Ultrasonic Wood Grain Oil Diffuser

The design of this device is similar to a rose bud, with a wood grain look. To create a fine mist, it uses high-frequency ultrasonic waves. This unit has a very impressive water holding capacity of 500ml and can cover up to 400sqfts. It can be used both as a diffuser and as a humidifier. It has six different led lights that rotate and can be toggled on and off. The device can run for up to 8 hours in different mist modes, and I will regard it as the best oil diffuser for a large room.


  • Auto shutoff
  • Large water-holding capacity
  • Gorgeous design
  • Ease of use
  • 8 hours operation time
  • One-year warranty

9. BellaSentials Cold Mister

Apart from the attractive design of this piece, it is also among diffusers with high holding capacity. On the high setting, the device can run for 8 hours, as to 12 hours in low setting. It has a large tank of 350ml and can cover about 450sqfts. The unit is excellent for overnight aromatherapy.


  • Large tank
  • Auto shutoff
  • Long duration of operation
  • Silent operation
  • Attractive design
  • Extra led button


  • Its large tank means it is not as a portable as its peers.
  • You may have to measure the water before filling it.

10. ZAQ Dew LiteMist

Apart from the variation in style and colors that the Zaq Dew LiteMist offers, there is another reason it made it to this list. It has a compact and simple design that your visitors will find attractive. The tank size is 80ml, and can cover 300sqft area for up to four hours. The cool mist has an ionizer that helps to relieve stress, enhance moods. The operation is silent and gives an absolute quality of essential oil. Once the unit runs out of the water, it has an auto shutoff feature. To enjoy the effect of this product, I advise you use only therapeutic grade oil and take the time to revel in the mist to allow your skin and body to absorb the oil. The unit has a bubbling sound that is soothing to the ears.


  • Pleasant lights
  • Attractive and compact design.
  • Almost silent operation
  • Easy to clean
  • Auto shutoff
  • One-year warranty.


  • Not suitable for those who prefer complete darkness at night because the light does not go off.

Difference between diffusers and humidifiers

Because humidifiers and diffusers act alike, many tend to confuse them for each other. Humidifiers give off mist to preserve the air moisture. Humidifiers are suitable for people who want to prevent dry skin or lips, especially during dry winter months. The moisture is required more during dry weather conditions and during the heat of fall. They dryness that comes with these climates can cause issues like skin dryness, viral, and bacterial problems for some people. People use humidifiers to treat cold symptoms, flu or sinus congestion. Humidifiers are also efficient for those with allergies or asthma, providing fast relief. Furthermore, it helps to lessen snoring. The humidifiers produced for sale in the market are not able to diffuse essential oil. If you intend to optimize the effect of essential oil by dispersing it, then I would recommend you go for a diffuser, properly called essential oil diffuser.

Diffusers, on the other hand, deliver only essential oil and are designed specifically for aromatherapy. There is more. Some diffusers can also function as a humidifier, and can give off the cooler mist. They come in different shapes and sizes and give aroma to the area by vaporizing mists with essential oil.

What factors determine the best Diffuser for Essential Oils?

In choosing what would pass as the best product, there are factors that should come into play. Every diffuser brand will state that it is better than its competitors are ? that remains for you to decide. The essential point is that it diffuses essential oils. Of course, it would be useless if it does not do what it says, and what I look for are the features that allow for ease of use, coverage, and intended use. These are questions you should ask: Why am I buying? For the aroma, or the health benefit? Where will I use it? Home or office? A large or small room? Look at the following features.

Capacity: The capacity of the diffuser determines how much of Essential oil it can carry. Diffuser with large holding capacity reduces the refilling frequency. This will ensure you have the time to do other things without worrying that your diffuser will run out of oil soon.

Auto-shutoff: When the diffuser runs out of water or oil, it should automatically shut off to prevent the unit from burning up.

Timer: With this feature, you can quickly decide how long you want the diffuser to run. This saves you from having to periodically check the time before you shut it off. While some come with the auto timer, some have the feature of running for a period before going off.

Coverage area: The coverage area of a diffuser tells how further it can reach. Some diffusers are designed to cover the entire house or office, and some work well in a small area. If you want the diffuser to reach beyond your living room to every corner of the house, you would be better off with a diffuser with more square feet reach.

Ease of cleaning: A good diffuser should allow for easy cleaning. Cleaning could be done with water, dish detergent or alcohols ? whichever you prefer. It should be conveniently done without damaging the unit.

Essential oil replacement: If you were the type that uses different oil with a change in weather or daytime, then you would find this to be an essential factor. It is important that changing oils do not become a herculean task.

Customer service and reviews: Negative feedbacks are disastrous for any company. When choosing any diffusers, I try to check what other buyers are saying and allow that to guide my decision. A good diffuser brand should offer aftersales support and at least 3-months warranty.

Different Types of Diffusers

There are four types of diffuser based on the mode of operation. Each diffuser works differently and is selected according to user?s need or personal preferences.

Nebulizing Diffusers

I consider this the most powerful and efficient of all the diffusers. In fact, it is popular than the rest. To diffuse oil, it does not require heat nor water. For its operation, it employs the kind of technique used in perfume atomizer. The in-built atomizer functions like the pushed top of a perfume bottle. The air produced at the base of the diffuser pushes up the air from the bottom to the top of the tube. The constant airflow releases the oil into the air in fine sprays. The therapeutic grade of oils is perfectly retained, and I would personally recommend this kind of diffuser over the rest. Asides from preserving the quality of the essential oil it diffuses, it also easy to maintain and does not require constant cleaning.

The sides some users may not feel comfortable with are the sounds it makes during operation (it is not that loud) and the quick oil exhaustion. It also uses more oil than the rest, but aside that; it is still the most recommendable type of diffuser, especially around sick people who require a constant stream of essential oil.

Ultrasonic Diffuser

Its mode of operation is somewhat similar to the nebulizer. It also creates a fine mist, however, unlike nebulizing diffusers, they require water to create the cool mist. Due to the water mixture, the concentration of the essential oil is reduced. Ultrasonic diffusers can also function as humidifiers especially during winter or in dry climates. Almost any kind of essential oil can be used with this diffuser, apart from citrus essential oil because it could corrode core elements of the diffuser.

When compared with nebulizing diffusers, ultrasonic diffusers are less expensive but not as efficient. They also require constant cleaning and are harder to maintain.

Evaporative Diffuser

Evaporative Diffuser: As the name says, this unit uses evaporation to diffuse essential oil. A fan provides air through a filter or pad into the area where the essential oil is held. The air blown by the fan makes the oil evaporate. The effect is that there is a fast dispensation of aroma into the air. The therapeutic effect of the oil is however reduced by the imbalance that resulted from the continuous air flow. It is the most efficient whenever you quickly need to change or add to the aroma of a place.

Heat Diffuser

Unlike the evaporative diffusers, heat diffuser uses heat to diffuse oil into the air. A carrying chamber holds the oil to be diffused, and then when heat is applied to the base, the oil diffuses. The procedure is simple. Pour the oil to be diffused on the tray, then light a candle or whatever your preferred heat source is, and let the oil diffuse. It works effectively for small rooms and is noiseless. There are, however, some side effects such as the risk of fire hazards, reduced oil diffusion effects, and altered therapeutic effect of the oil.


Getting the best diffuser for your home, office, or business does not necessarily have to be hard work. Daily, people, are always finding a way to stay healthy, and the solution provided by natural sources like essential oils cannot be overstated. It may be a good idea that you create a checklist of your preferences and match it with the device that best meets your diffusing needs.

About the author

    Sally Wong

    Sally Wong is a manual therapist for about 15 years now and also a massage specialist. She is actively taking care of her body to stay healthy and in shape by doing Yoga and Tai Chi. She has a lot of knowledge and interest in Essential Oils because of her Oriental background. She learnt many things from her Grandmother. Originally from a small village in South China, now she lives in Vancouver, Canada.

    kim - May 9, 2017

    Just want to mention that the brand name of the No.1 essential oil diffuser is not Innoo Tech, it should be InnoGear.

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