The oil diffuser is an object that helps with the oil’s diffusion process and it can be frequently seen in aromatherapy , spa or relaxation facilities. For those of you who are not yet familiar with the term “diffusion?, we will make a short introduction to explain it for you. First of all, the simple process of dispersing oils into an oil diffuser is called diffusion. While the essential oil is being dispersed, its aroma fills the air with a special scent, depending on the oil’s aroma. Today’s market offers a wide variety of oil diffusers that can be used by anyone, anywhere.

The main purpose of using it is relaxation. Essential oils are well-known for their valuable properties and have been used in alternative medicine since forever. Giving the fact that they are made of plants, they gather the best of it, which is the main reason why they are called “essential?.

Essential oil diffusers can be encountered on the current market at various prices, having different shapes and sizes. After trying several models, one might incline to say that one diffuser is better than the other. The reality is, though, that there are so many types of oil diffusers out there, that it is really difficult to give a verdict with regards to the best essential oil diffusers, since they all bring so many benefits in our lives. Using such an object in your relaxation process is a true wonder. Once the oil starts being diffused, both your mind and body start embracing a peaceful feeling that is otherwise extremely hard to achieve.

When it comes to categorizing an aromatherapy oil diffuser, you should know that there are four main categories available nowadays: nebulizing diffusers, humidifying diffusers, also known as ultrasonic diffusers, heat diffusers and evaporative diffusers. They all have different was of diffusing essential oils and some would say that they have different effects on people, too.

Oil diffusers are often used to replace candle diffusion at some relaxation parlours, massage facilities and aromatherapy facilities, due to a lower to no toxic chemicals in their composition. It has been scientifically proved that candles contain artificial scents and dyes, obtained from chemicals that might harm our bodies instead of helping them relax and revive. An oil diffuser is the perfect alternative for those of you who are interested in obtaining a peaceful state of mind in the shortest time possible. Moreover, it is recommended to those who are allergic to artificial scents or simply feel uncomfortable knowing that burning candles can affect their health.

We have gathered a few of the most popular oil diffuser models on the market, reviewed them and presented a few pros and cons that each electric essential oil diffuser has. This way, if you are looking to buy such a relaxation tool, you will know what to look for. When reviewing the oil diffusers below, we looked at the type of technology they use, their warranty, area coverage and operating hours.

1. Riverock Essential Oil Diffuser by Deneve

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This elegantly designed device expresses invigoration just by looking at it. It comes in white, as well as black and white, and it can easily be confused to a decorating object. It is an example of ultrasonic oil diffuser and it is extremely quiet. Its compact design fits in any home, regardless of the furniture style or colour.

It includes a LED light that can be locked to a single colour, can change colours or can be turned off if not required. It has no buttons, which makes it even more elegant. Users of this oil diffuser will be able to turn it on just by pressing on it. Even if it has plenty of advantages, its size limits its capacity of dispersing the scents on a large surface.

What’s to like about Riverock Essential Oil Diffuser by Deneve

  • Modern design
  • Extremely quiet
  • Has Auto Shut Off feature
  • Very affordable

What’s not to like

  • 1 year warranty
  • Small coverage area

2. Essential Oil Diffuser by Smiley Daisy

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The essential oil diffuser by Smiley Daisy is a high quality unit that also works as a humidifier. It can cover 200 square feet and hold up to 120 ml of water. It uses an ultrasonic technology based on water and oxygen with the purpose of keeping the exact aroma of the essential oil. It has an elegant design and it comes in white and brown, being able to fit any home style.

Just like most oil diffuser models, this one also has changing LED lights that will ensure a relaxing atmosphere. Thanks to its humidifying properties, users are protected against flu and allergies when using it. It can run for 6 hours and can be plugged in whenever it is needed.

What’s to like about Essential Oil Diffuser by Smiley Daisy

  • Has humidifying function
  • Has great LED colours
  • Has an Auto-Shut Off mechanism
  • Lasts for 6 hours
  • Extremely quiet

What’s not to like

  • 180 days warranty
  • Clicking the top might be uncomfortable

3. ZAQ Mirage Multi Color LiteMist 150 ml

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This essential oil diffuser has a great, curved design that allows its light to shine from underneath it, offering the room a special aspect. It uses LiteMist technology that helps the device separate the oil from the water while being dispersed into the air. It is an innovative device, with ionizing and humidifying effect.

One of the great things about this unit is the fact that it uses an extremely low energy and when the water runs out, it automatically shuts down. It can operate for approximately 3 hours. The user can enjoy its lighting effects or turn them off completely when needed. Even though it is a quiet product, it does make some bubbling noise that can be annoying sometimes.

What’s to like about ZAQ Mirage Multi Color LiteMist

  • It is easy to use
  • Perfect for small rooms
  • Has Auto-Shut-Off feature
  • Great design

What’s not to like

  • Low quality LED light
  • Water reservoir cannot be removed for cleaning

4. Greenair Spa Vapor

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This essential oil diffuser is an improved model of an older one from the same manufacturer. It is an extremely affordable model with an on/off switch, 6 coloured LED lights, auto-shut-off feature and an advanced ceramic disc. Even though it is a low cost oil diffuser, it can cover up to 500 square feet, which is quite rare.

Its water reservoir is sizeable, it weighs 4 pounds and it can run for approximately 6 hours. It is BPA free, being able to use purified water, it uses ultrasonic pulsating sound, but it in spite of its qualities, it has no timer and it is poorly designed, as it is manufactured from plastic. Except for that, it is easy to use and extremely practical.

What’s to like about Greenair Spa Vapor

  • Inexpensive
  • Large area coverage
  • Quiet
  • Has Auto-Shut Down mechanism

What’s not to like

  • Cheap design
  • No timer

5. Now Foods Ultrasonic Oil Diffuser

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This diffuser has an appealing design thanks to its conical shape and its modern touch. It is an innovative product, BPA free, with a high-frequency ultrasonic electrical vibration that uses no heat to diffuse the oil. The purpose of not heating the oil while diffusing it is to maintain its integrity and properties.

It uses tap waters and it is extremely easy to clean. It can run for 6 hours and its LED lights can be turned off or paused when not required by the user. Its ability to shut off when the water reservoir is empty is extremely useful. This unit can cover up to 250 square feet, which means that it is suitable for most rooms in a home.

What’s to like about Now Foods Ultrasonic Oil Diffuser

  • Has elegant style and a modern design
  • Can run up to 6 hours
  • Has Auto-Shut-Off mechanism
  • Compatibility with tap water
  • Can be easily cleaned

What’s not to like

  • Unlike the image on the box, the product is white
  • Scents can become heavy sometimes

6. Smiley Daisy Essential Oil Diffuser – Mini Cool Mist Humidifier

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This is a mini essential oil diffuser designed by Smiley Daisy, with a changing LED that has 7 colours, a mist mode adjustment and an auto-shut-off feature. Like its bigger brother, this unit also works as a humidifier, protecting the user from flus, allergies and dryness, which is really cool.

This device can only cover an area of 150 square feet and has a 180 days warranty from the manufacturer. Despite its size and capacity, it is able to reduce cigarette smell from a room almost instantly. Even though it is a quiet product, a certain whistle can be heard while functioning. It has been designed with the help of advanced ultrasonic technologies and its use is even recommended during sleep.

What’s to like about Smiley Daisy Mini Essential Oil Diffuser

  • Is appropriate for small rooms
  • Its cool mist feature is lovely
  • Has humidifying abilities
  • Simple design, fits anywhere

What’s not to like

  • Has small area coverage
  • 180 days warranty

7. VicTsing Electric Aromatherapy Essential Oil Diffuser

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This electric essential oil diffuser has a great design that perfectly fits wooden furniture, compact and stylish. It has a water capacity of 140 ml and it only weighs 461 g. This is the ideal device for those who are looking to relax and beautify their living or working space with a modern, sophisticated object. It has an ultralow mute function which is perfect for those who wish to use the unit while sleeping.

Besides having an excellent design, it also has negative oxygen ions and sterilization dust, which makes it perfect for sensitive people. It can be connected to 100-240 V power supply and its power consumption is quite low. The great thing about this oil diffuser is the fact that the manufacturer offers a 45 days money-back period and 12 months carefree warranty.

What’s to like about VicTsing Electric Essential Oil Diffuser

  • Has amazing design
  • LED lights can be turned off
  • Does not beep when it turns off
  • Has a 4.5 feet long power cord
  • Made of real wood

What’s not to like

  • Does not have a timer
  • Does not have a humidifier function
  • Does not use purified water
  • When water is not enough, mist stops working

8. Samyo 100 ml Aromatherapy Essential Oil Purifier Diffuser

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Samyo essential oil diffuser is a unit with a simple, classic design that also works as a humidifier. It has 4 timer settings and LED changing lights that can be turned off and it uses ultrasonic technology to produce an amazing scented mist that is really pleasant during relaxation sessions.

This device is extremely affordable and even though it has a poor design, it has the basic qualities of a practical essential oil purifier and diffuser. The 100 ml version of the product can cover an area of 220 square feet and it monitors the water level and shuts off when no water has been detected.

What’s to like about Samyo 100 ml Aromatherapy Essential Oil Purifier Diffuser

  • Also works as a humidifier
  • It covers a large area comparing to its size
  • Has a low noise level
  • Has multiple timer settings

What’s not to like

  • Poor design
  • Plastic material

9. ZAQ Noor Multi Color LiteMist Aromatherapy 80 ml

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This product has an 80 ml water capacity, 3 to 4 hours operating time and an area coverage of approximately 300 square feet. Its light effects are pleasant and can be chosen from a variety of colours and its functionality is very impressive. It starts functioning right after being plugged in. It has a sleek design; it comes in white and has LED lights with soft colours.

ZAQ Noor is noiseless and contributes to a room’s aspects, thanks to its modern, conical shape. It can operate for up to 4 hours and has 1 year manufacturer’s warranty. Unlike other models, this one does not work as a humidifier. Even though it has a wonderful design, numerous customers have been complaining with regards to the short life of the product.

What’s to like about ZAQ Noor Multi Color LiteMist Aromatherapy 80 ml

  • Covers a large area comparing to its water capacity
  • Has a sleek design
  • Has Auto-Shut-Off
  • It is noiseless

What’s not to like

  • Short operating time

10. AromaMist Dba Unitrex Diffuser and Humidifier

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AromaMist diffuser and humidifier uses the ultrasonic technology, just like the other units we reviewed in this article. It has a modern design, a metallic colour and multi-colour light effects that can be disabled if needed. Its water capacity is of 100 ml and it can cover an area of 150 square feet. It will shut down automatically when no water is detected in its reservoir.

Its round shape is preferred by numerous customers who enjoy adopting an elegant, compact design. Giving the fact that most essential oil diffusers have conical structures or stone-like shapes, this model steps out of the crowd. One of its disadvantages, though, is the fact that it can only operate for 3 hours. Also, it makes a whispering sound at times. But let’s look at the bright side of things: it works as a humidifier, too, so it brings health benefits.

What’s to like about AromaMist Dba Unitrex Diffuser and Humidifier

  • Its round shape
  • It also works as a humidifier
  • It is suitable for small rooms
  • Has an elegant design
  • Auto-Shut-Off

What’s not to like:

  • Some users have been complaining about its short life expectancy