15 Best Essential Oil Diffusers Of 2021 For An Aromatic Room

Written by Sneha Manandhar
All products recommended on StyleCraze are independently selected by our editorial team. If you make a purchase through any of these links, we may receive a commission. Learn more about our product selection process here.

When all of us are trying to cope with the stress and strain of the modern world, essential oil diffusers offer an inexpensive and easy solution. All you need to do is choose your favorite essential oil, be it lemon, lavender, or sage, and use a few drops of it for its fragrance to spread through your personal space. People also often turn to these diffusers when seeking aromatherapy and relaxation for the ultimate soothing experience. It’s also known to help with physical and mental symptoms like pain, stress, and nausea.

When easing anxiety and giving a boost to your mental health can be as simple as taking a deep breath, why go for an expensive spa or aromatherapy treatment? All this in the comfort of your own home and whenever you want! One of the easiest ways to achieve this is through aromatherapy, where these concentrated oils are breathed in, allowing them to stimulate the brain. And even if you don’t get any magical healing effects from your diffuser, it’s still sure to make your home smell wonderful. Do check out our review of the 15 best essential oil diffusers, so that you can enjoy the experience to the fullest.

InnoGear Essential Oil Diffuser - Basic White
Check Price
Pure Daily Care Ultrasonic Diffuser
Check Price
Asakuki Premium Essential Oil Diffuser – A-Yellow
Check Price
Equsupro Essential Oil Diffuser – Tree
Check Price
Amazon Basics Essential Oil Diffuser - Classic Wood Grain
Check Price
Everlasting Comfort Essential Oil Diffuser - Dark Wood
Check Price
Anjou Essential Oil Diffuser- White
Check Price
Now Solutions Ultrasonic Real Bamboo Essential Oil Diffuser
Check Price
Stadler Form Jasmine Essential Oil Diffuser – Black
Check Price
BBSKIN Essential Oil Diffuser
Check Price

What Do Essential Oil Diffusers Do?

Also known as an aromatherapy diffuser, and as the name suggests, it disperses essential oils into the air, filling it with a natural fragrance. An essential oil diffuser is a device that breaks essential oils down into smaller molecules and diffuses them into the air. It evenly disperses the particles into the air at a comfortable concentration, which is easy to breathe in and doesn’t take over the room. They are an easy way for self-care and bring wellness and tranquility into your personal space, setting the tone for the rest of the day. Depending on the essential oil used, it can have a pleasant or calming effect.
15 Best Essential Oil Diffusers Of 2021 – Our Reviews And Buying Guide

1. InnoGear Essential Oil Diffuser – Basic White

Do you want to enjoy peace and calm in the midst of the hustle and bustle of modern life? Literally the size of your palm, this small essential oil diffuser can be placed anywhere. It has 2 misting modes— the intermittent mode lasts for 6-8 hours and pauses every 30 seconds, and the continuous mode lasts for 3-4 hours or till the water runs out. Made of PP material, it’s ideal for small or medium sized rooms. It has 8 soothing colors with adjustable brightness and is great for creating a peaceful ambience and mood. You can sleep with this diffuser on at night without worrying about overheating as it will automatically shut off once the water runs out. This ultrasonic device works as a diffuser, night light, and humidifier, and the light and mist features can be used independently according to your needs.


  • Versatile
  • Portable
  • Measures 3.9×5.5 inches
  • Ideal gift for different occasions


  • Some may find it a bit noisy.

Buy Now From Amazon

2. Pure Daily Care Ultrasonic Diffuser

With a 400 ml water capacity and state-of-the-art wave diffusion technology, it has 7 ambient light modes with 2 brightness settings for 14 different light combinations. It also has 4 timer settings and an auto shut-off feature for low water levels and is made of BPA-free plastic with a beautiful printed wood grain design. It comes with 10 essential oils that include lavender, eucalyptus, tea tree, orange, peppermint, lemongrass, jasmine, nutmeg, clove, and spearmint oils. All these oils are therapeutic grade and are packed in 10 ml amber bottles to protect them from heat degradation. This diffuser delivers the therapeutic properties of plant essential oils through modern ultrasonic waves to atomize the oils into a mist instead of burning them with heat.


  • Wave diffusion technology
  • 400 ml capacity
  • BPA-free plastic
  • 14 light combinations
  • Comes with 10 essential oils


  • Some may find it difficult to clean.

Buy Now From Amazon

3. Asakuki Premium Essential Oil Diffuser – A-Yellow

Do you enjoy the therapeutic effects of essential oils that elevate your mood and relieve you from the stress of your lifestyle? This multifunction ultrasonic essential oil diffuser has a large and easy-to-clean 500 ml water tank, 7 different colored LED lights, multiple nebulizer modes for misting, as well as an automatic switch-off that prevents it from overheating in case it ever runs out of water. It also functions as a humidifier and improves the air quality at home while protecting your family from excessively dry air, microorganisms, allergens, dust, and more! It’s made from high-grade, safe, and eco-friendly PP material and all you have to do is pour 5-10 drops of your favorite essential oil in the diffuser, fill it with water and turn it on. It will fill your home with a subtle fragrance, improve the air quality, elevate your mood, and relieve you from anxiety!


  • 7 LED mood lights
  • BPA-free
  • Eco-friendly
  • Adjustable brightness
  • Energy efficient
  • Automatic shut-off


  • Some may find it bulky.

Buy Now From Amazon

4. Equsupro Essential Oil Diffuser – Tree

This portable essential oil diffuser is a perfect addition to any contemporary home, office, gym, spa, or studio. This aromatherapy essential oil diffuser also works as a cool mist humidifier, and night light. With 7 soothing LED lights, you can cycle between the colors or use just one fixed color. It uses advanced ultrasonic technology, is extremely quiet, and no heat is used, making it safe for kids and pets. It will automatically stop working as soon as the water is used up and prevent your unit from being damaged. It’s made from BPA-free material and uses high quality PP+ABS so that no harmful substances are diffused into the air.


  • Versatile
  • Durable
  • ETL and FCC-certified
  • Quiet operation


  • Some may find filling water in it cumbersome

Buy Now From Amazon

5. Amazon Basics Essential Oil Diffuser – Classic Wood Grain

This essential oil diffuser gives you 8 hours of consistent scent and 12-16 hours of intermittent scent. The ultrasonic aromatherapy diffuser comes with a 100ml water capacity. It distributes evaporated essential oils into the air, uplifting the ambiance and relaxing the mood. The whisper operation doesn’t disturb the surroundings, while a classic wood grain finish adds to the beauty of your room.


  • Quiet operation
  • Auto shut-off
  • 7 colors of light
  • Ultrasonic aromatherapy
  • Easy to use



Buy Now From Amazon

6. Everlasting Comfort Essential Oil Diffuser – Dark Wood

Unlike smaller oil diffusers, this diffuser’s 400ml water tank will last through the day. The mist output, depending on whether set to high or low, will last up to 13 hours according to your individual preference. It’s timer can be set for 1, 3, or 6 hours, and you can also set it to continuous mode for nonstop fragrance. Its auto shut-off feature turns off automatically when the water level is low. With 7 soothing color LED light options and a carousel mode, it helps to set the mood with its high and low settings. It’s made from high quality BPA-free plastic, which provides a safe environment for you and your family to enjoy. It’s quiet ultrasonic motor and soft ambient light provides a peaceful and serene environment, making it perfect for any room.


  • Large water tank
  • 7 color light options
  • High quality
  • ETL-certified


  • May not produce sufficient mist in some cases

Buy Now From Amazon

7. Anjou Essential Oil Diffuser- White

This essential oil diffuser has a patented oil flow system, which ensures consistent scent in your room with one fill, with no need to add essential oils again and again. It also has a patented essential oil tube which is designed to continuously diffuse the oil into the water to scent your space. It operates quietly with no sound of dripping water and creates a restful and calm environment. With a capacity of 300 ml, it releases a soothing fragrant mist in 2 modes for up to 8 hours. Made with BPA-free material, this diffuser also has an automatic switch-off function when the water runs out, and is safe for overnight use.


  • BPA-free material
  • Patented oil flow system
  • Patented essential oil tube
  • 300 ml capacity
  • Noiseless operation


  • Water might leak in some cases

Buy Now From Amazon

8. Now Solutions Ultrasonic Real Bamboo Essential Oil Diffuser

This ultrasonic real bamboo wood essential oil diffuser is extremely quiet as it spreads its fragrance through the room. You just need to add 150 ml of tap water and 5 drops of your favorite essential oil and enjoy the results. You can set the desired time of 1 or 2 hours, as well as an intermittent or continuous mode. It diffuses fragrance upto 7 hours on continuous mode and 14 hours on intermittent mode, then shuts off automatically. It’s easy to clean and made of safe BPA-free material. This essential oil diffuser has rotating LED lights and is great for both home and office use.


  • BPA-free
  • Extremely quiet
  • Easy to clean
  • No heat involved
  • Automatic switch-off


  • Might get noisy after a few uses in some cases

Buy Now From Amazon

9. Stadler Form Jasmine Essential Oil Diffuser – Black

This unique essential oil diffuser is powerful, and easily fills a space with fragrance as it blends water and pure essential oils to disperse aroma. When on intermittent mode, the diffuser operates 10 minutes on and 20 minutes off for up to 21 hours. If set on continuous mode, it can run for 8 hours straight. This aromatherapy diffuser has a sleek, contemporary look and is very quiet yet powerful while running. It is also very easy to set up and adjust the settings. Its aesthetically-pleasing design, long running time, and low maintenance make it ideal for just about any space. You have an option of several vibrant colors of light that can complement your decor.


  • Sleek, modern design
  • Long running time
  • Quiet operation
  • Easy to set up


  • Some may find its diffusion of fragrance inadequate

Buy Now From Amazon

10. BBSKIN Essential Oil Diffuser

This mini essential oil diffuser has an elegant and contemporary design and can be placed almost anywhere. It can store up to 80ml of water and can be used as a diffuser, air refresher, or humidifier. It has 7 different colors of LED mood lights—all you need to do is tap the top cover of the diffuser twice to switch the color of the light according to your mood. It is made from high quality BPA-free plastic, providing a safe mist. It switches off automatically once the water runs out. This aromatherapy diffuser can be charged using a power bank, computer, AC adapter, or car USB power supply and releases a fragrant mist for upto 6-8 hours. Its single button design is easy to use and all the functions are simple enough to be operated even by children. It can humidify your living space, moisten dry skin, and doesn’t have a disturbing noise while misting.


  • BPA-free
  • Auto switch-off
  • Non-slip mats
  • Noiseless misting
  • Advanced ultrasonic vaporizing diffusion technology


  • May not diffuse as efficiently

Buy Now From Amazon

11. Earnest Living Ceramic Essential Oil Diffuser

This ceramic essential oil diffuser with a capacity of 250 ml improves air quality, removes unwanted smells, protects your family from excessively dry air, and relieves everyday stress. It comes with an auto shut-off function whenever the water finishes. This advanced ultrasonic diffuser comes with 4 timers and runs very quietly. It also has an option of 7 colored lights which you can change according to the ambience you want to create. This essential oil diffuser makes a great gift for a variety of occasions.


  • Sleek design
  • Auto shut-off function
  • 4 settings of timer
  • Choice of 7 colored lights


  • Some may find it difficult to clean the oil residue and dust.

Buy Now From Amazon

12. Vitruvi Stone Essential Oil Diffuser – Black

This stone essential oil diffuser is made of good quality porcelain and can be used as a decoration piece as well. It has a capacity of 90 ml and can diffuse fragrance in a room up to 500 sq.ft. It has a ceramic cover and an optional LED light that emits a candle-like glow. It comes with 2 settings of continuous running which lasts for 3 hours, and 7 hours of intermittent running. Its ultrasonic diffuser technology doesn’t use heat so as to maintain the chemical integrity of the essential oils. This diffuser also has an auto shut-off feature that turns off the diffuser for safety when water levels run low.


  • Matte ceramic cover
  • Optional LED light
  • Auto shut-off feature
  • Continuous and intermittent mode


  • Some may find it too small.

Buy Now From Amazon

13. Ellia Gather Ultrasonic Essential Oil Diffuser – White

This essential oil diffuser with remote helps you to relax in the ambient changing color light for up to 10 hours of continuous runtime and 20 hours of intermittent running. It has a capacity of 200ml and it provides a light pleasant aroma while gently humidifying your space, with no sound at all. It has an additional sound therapy feature with several relaxing options to improve your mood and calm you. Crafted from ceramic and wood, it’s great for your decor and is easy to operate with its remote and programmed controls. It has the added advantage that it comes with 3 essential oil samples to keep you covered.


  • Noiseless
  • Long running time
  • Acts as a humidifier too
  • Features 3 essential oil samples


  • Some may not be satisfied with the efficiency of the remote

Buy Now From Amazon

14. Depnee Essential Oil Diffuser

Add a few drops of essential oil to this essential oil home diffuser and it will quickly fill your room with a lovely fragrance to soothe your senses. You can also use it as a humidifier without the oils for a cool and smooth mist. With a large capacity of 550 ml, the tank is easy to clean and is ideal for 40㎡ space, and works for about 10 hours. Advanced ultrasonic technology ensures that it runs quiet as a whisper. It comes along with a remote control for easier and more convenient operation. It has 7 different colored lights that can be used continuously and intermittently, as well as with a bright and dim option. There are also 2 options of mist to choose from—strong and standard mist. With a white wood grain finish, it’s a beautiful home decoration and also a perfect gift.


  • 500 ml capacity
  • Noiseless operation
  • Auto-off function
  • Long running time


  • The plastic might get overheated

Buy Now From Amazon

15. PureGuardian SPA210 Aromatherapy Essential Oil Diffuser

This small essential oil diffuser provides the senses with pleasant aromas that reduce stress. It has a simple and clean design that includes touch control for power and an optional night glow light. It is lightweight and compact, making it great for small spaces. It runs quietly for up to 5-8 hours, so the diffuser won’t disturb you when you’re sleeping. Its silver clean protected tank ensures there is no mess and no filter required.


  • BPA-free
  • Treated with silver clean protection
  • Noiseless operation
  • Lightweight and compact


  • May not be suitable for larger rooms

Buy Now From Amazon

Now that you have been through our reviews of the 15 best essential oil diffusers, let us tell you about the different types of diffusers that are available in the market.

Types Of Essential Oil Diffusers

  • Nebulizing diffusers

Nebulizing essential oil diffusers use pressurized air to diffuse a mist of the essential oil. They require neither heat or water, are plastic-free, and are a low maintenance choice. The essential oil is pulled to the surface of a distribution tube which results in a burst of mist into the air.

  • Ultrasonic or humidifying diffusers

Ultrasonic vibrations break up the essential oil molecules and create a fine mist. The essential oil needs to be diluted with water so that the diffuser’s electronic frequencies can release the oil into a mist. Ultrasonic diffusers work like humidifiers, which makes them the perfect choice if you want to add moisture to the air.

  • Evaporative diffusers

A small fan helps to turn the essential oil into gas, making it evaporate into the air. However, as the oil evaporates, it tends to lose some of its potency, and so is good for those who want a quick and occasional aromatic sensation.

  • Heat diffusers

In this type of diffuser, heat is used to turn the essential oil into gas so that it evaporates into the air. Heating may change the chemical properties of the oil, making it less or more intense depending on its properties. As there is no fan, this type of diffuser is completely silent and includes variants such as electric heat diffusers, candle diffusers, and lamp ring diffusers.

Now let us give you a few tips on what to look for while selecting an essential oil diffuser for yourself so that you choose something that suits your requirements the best.

How Do I Choose A Good Essential Oil Diffuser?

  • Most popular type

Ultrasonic diffusers are the most popular as they fit all budgets, are easy to clean, and generally don’t break because of the plastic components. Electronic frequencies create ultrasonic vibrations, which creates a ripple in the water while breaking up the essential oil molecules to create a fine mist.

  • Strength of scent

For a stronger fragrance, and especially if you like citrus essential oils, it’s best to use a nebulizing diffuser. This type of diffuser vaporizes the oil through pressurized air before releasing it in mist form. They are usually made of glass, are breakable, and also require more cleaning to prevent the oil from clogging the distribution tube.

  • What to avoid

It’s best to avoid steam diffusers, candle diffusers, or hot plate diffusers as the chemistry of the essential oils can be disturbed because of the heat produced by them. It’s also advisable not to use them in cars, as they can pick up the toxic scents from the synthetic materials which may be harmful.

  • Timer

Your essential oil diffuser should be easy to clean and have an in-built timer that will allow it to release the right amount of oil. The time increments can be continuous or intermittent. A good diffuser should be able to spread fragrance in a room in under 30 minutes.

Generally, most essential oil diffusers work in the same way and on the same principle, and here’s how to use one.

How To Use An Essential Oil Diffuser

Step 1: Set it up—You’ll need to set up your diffuser somewhere close to a wall outlet, and preferably in a room where you like to relax. Try to place it at least 2 feet above the floor so that the moisture is properly dispersed into the air.

Step 2: Fill up the tank—Many diffusers rely on water to create a mist, so you will regularly have to fill it up with water. Usually there is a clearly marked fill line so you know exactly how much water to use. It’s best to use filtered water so that there is no mineral buildup inside the diffuser, which may prevent it from working properly.

Step 3: Add the oils—Use as many drops of oil as desired which will usually be between 3 to 15 drops for a 100 ml diffuser.

Step 4: Adjust the settings—Most of the modern essential oil diffusers can be set to a wide range of preferences. For example, the mist can be constant or intermittent, or the brightness and color of the light can be adjusted.

An essential oil diffuser offers many benefits, and here are some of the main benefits that we have highlighted for you.

Benefits Of Essential Oil Diffusers

  • One of the benefits of essential oils is their ability to assist you in relaxing and unwinding after a stressful day at work. Oils such as chamomile, lavender, and sage in a diffuser not only help you to relax but also induce sleep.
  • Lemon oil is known to boost your mood and make you feel happy while other essential oils can create a relaxing ambience.
  • Essential oils, like lemon, peppermint, eucalyptus, thyme, tea tree, sage, rosemary, and grapefruit are antimicrobial and when diffused into the air, can keep a cold, flu, and other minor infections away.
  • Essential oils are also known to boost your immune system and some diffusers, which double as humidifiers, keep your airways moist so that you can breathe easier and be less susceptible to germs.
  • Diffused essential oils such as ginger, pine, chamomile, lavender, eucalyptus, sage, rosemary, and bergamot can be helpful in reducing headaches, sore joints, and overworked muscles, and can also charge your brain cells.
  • It helps to make your room smell great without having to use a flame.
  • It preserves the quality of the oil as it helps to preserve the original chemical structure of the oils.

Essential oil diffusers are an easy and inexpensive way to fill fragrance and positive vibes in your home to relax and unwind. So, depending on what you want from your diffuser, you can choose an appropriate essential oil, and can draw all the benefits of aromatherapy in a matter of minutes. Some essential oils can even interact with your brain and nervous system and, as a result, affect your mood and health, especially when we spend so much time indoors these days. We hope our review of the 15 best essential oil diffusers will help you make a choice that suits your requirements the best.

Frequently Asked Questions

Is it safe to use essential oil diffusers?

Essential oil diffusers are safe. However, when you don’t change the water in them regularly, the water may harbor bacteria, which can make you sick the next time you turn it on. Diffusers should also be avoided for pets and pregnant women.

Are essential oil diffusers safe for babies?

It might be best to avoid essential oil diffusers for children below 2 years of age as they may be sensitive to the essential oil which could cause allergies with symptoms like nausea, rashes, and headaches.

Can essential oil diffusers cause cancer?

There is no evidence supporting this. But it is best to not use essential oils for those with skin cancer or in areas where there is a skin reaction to radiation therapy, as it may aggravate the issue.

Are diffusers bad for your lungs?

If you don’t have any existing lung issues, you really don’t need to worry too much as external use of an essential oil probably won’t put you at risk unless of course, you are allergic. However, if you have a lung condition, like asthma or COPD, you need to be more cautious as strong smells produced by essential oils may contain volatile organic compounds that can irritate the lungs.

The following two tabs change content below.