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The Best Oil Diffuser

Last updated on May 21, 2019

We looked at the top 10 Oil Diffusers and dug through the reviews from 36 of the most popular review sites including Gadgets, The Spruce, Good Air Geeks, A Web To Know, Morning Chores, New York Times Wirecutter and more. The result is a ranking of the best Oil Diffusers.

Best Oil Diffuser

Why Trust The DWYM Score?

DWYM is your trusted product review source. Along with our in-house experts, our team analyzes thousands of product reviews from the most trusted websites. We then create one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in a category.

Our experts reviewed the top 10 Oil Diffusers and also dug through the reviews from 36 of the most popular review sites including Gadgets, The Spruce, Good Air Geeks, A Web To Know, Morning Chores, New York Times Wirecutter and more. The result is a ranking of the best of the best Oil Diffusers.

Our Picks For The Top Oil Diffusers

Show Contents
Our Take
Experts Included
Pros
Cons
  The Best Overall

ZAQ

Dew Essential Oil Diffuser

Overall Take

This gorgeous diffuser's modern design and effectiveness put it at the top of our list. There's a lot to love about this diffuser, from its sturdy construction to the smooth, reliable stream of essential oil mist. It can help bring a "spa vibe" to your home. Read More

Experts Included
DWYM Health & Wellness Experts plus BestReviews, Aroma Hunter. Along with user reviews from Amazon and Walmart.
Pros
" Ultrasonic cold mist generation is effective and safe."
Cons
"There is a light ring around the switch. This light ring cannot be turned off."
  The Best Value

URPOWER

2nd Gen Aroma Essential Oil Diffuser

Overall Take

Our Best Value diffuser is one of the most inexpensive options on the market, but that doesn't mean you should expect poor performance. It produces a strong stream of mist that makes the most out of your oils. The long timer settings (60, 180 or 360 minutes) is also a selling point.

Experts Included
DWYM Health & Wellness Experts plus Complete Home Spa, New York Times Wirecutter, Tuck, Essential Oil Haven and 1 more. Along with user reviews from Amazon.
Pros
" This diffuser is one of the cheapest on the market."
Cons
"Since the device has just two buttons, you don’t get a simple on/off switch for the mist or for the lights; you have to cycle through every option to shut off either function."

ASAKUKI

Premium Essential Oil Diffuser

Overall Take

This long-lasting diffuser produces a steady stream of strong mist. It can run up to 16 hours on a single fill, and the seven LED colors make it a fun choice for kids' rooms. It's worth noting that this diffuser's larger size may be too bulky for some, but it's still a top contender in our book.

Experts Included
DWYM Health & Wellness Experts plus New York Times Wirecutter, The Top Pro, Jen Reviews, ensmartech. Along with user reviews from Amazon.
Pros
" The Asakuki 500ml Essential Oil Diffuser produces an equally strong stream of mist compared to our pick, but with a larger tank, it lasts even longer—up to 16 hours on its weakest setting, and around 10 hours on the higher..."
Cons
"Not suitable for very small rooms. Makes the low buzzing noise."

VicTsing

Cool Mist Essential Oil Diffuser

Overall Take

The VicTsing diffuser produces a strong essential oil mist for up to 10 hours. It boasts an auto-shutoff feature and four different setting modes. Some consumers have noted that the lid doesn't lock after you fill this diffuser, but it's still worth the cash if you're careful.

Experts Included
DWYM Health & Wellness Experts plus Gadgets, The Spruce, Good Air Geeks, A Web To Know, Morning Chores and 1 more. Along with user reviews from Amazon and Walmart.
Pros
" This diffuser is enough for 10 hours of continuous operation. There are also other modes of operation: 1 hour, 3 hours and 6 hours."
Cons
"Some have had issues with it breaking or not diffusing as much steam over time but most customers would recommend it to others."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
17

Products Considered

We identified the majority of the oil diffusers available to purchase.
10

Products Analyzed

We then selected the leading and most popular products to review and score.

View All Product Rankings

36

Expert Reviews Included

Reviews from our DWYM category experts and analysis of some of the most respected sources including: Gadgets, The Spruce, Good Air Geeks, A Web To Know, Morning Chores.

82,995

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon, Walmart.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in their category.

The Best Overall

ZAQ Dew Essential Oil Diffuser

Expert Summarized Score
10.0
2 expert reviews
User Summarized Score
7.9
149 user reviews
The DWYM Expert Take

This gorgeous diffuser's modern design and effectiveness put it at the top of our list. There's a lot to love about this diffuser, from its sturdy construction to the smooth, reliable stream of essential oil mist. It can help bring a "spa vibe" to your home.

What other experts liked
Ultrasonic cold mist generation is effective and safe.
- BestReviews
The diffuser is well constructed. The plastic is made of good quality material.
- Aroma Hunter
May 11, 2017 | Full review
What other experts didn't like
Small water capacity; only four hours of operation at a time.
- BestReviews
There is a light ring around the switch. This light ring cannot be turned off.
- Aroma Hunter
May 11, 2017 | Full review

The Best Bang For Your Buck

URPOWER 2nd Gen Aroma Essential Oil Diffuser

Expert Summarized Score
9.6
5 expert reviews
User Summarized Score
8.6
4,184 user reviews
The DWYM Expert Take

Our Best Value diffuser is one of the most inexpensive options on the market, but that doesn't mean you should expect poor performance. It produces a strong stream of mist that makes the most out of your oils. The long timer settings (60, 180 or 360 minutes) is also a selling point.

What other experts liked
This diffuser is one of the cheapest on the market.
- Complete Home Spa
The Urpower 300ml Aroma Essential Oil Diffuser produces a stronger stream of mist than most diffusers we tested.
- New York Times Wirecutter
November 1, 2018 | Full review
This Urpower comes with automatic shut-off tech that shuts down the entire system once the machine exhausts the water to make the operation more flexible and to prolong the service.
- All Top Ten Reviews
November 13, 2018 | Full review
The machine features four time settings offering 60, 180, or 360 minutes of continual diffusing, as well as an unlimited “on” setting.
- Tuck
December 14, 2018 | Full review
It uses advanced ultrasonic diffusing technology, breaking water and essential oils into extremely fine particles without using heat.
- Essential Oil Haven
May 16, 2017 | Full review
What other experts didn't like
It does have some drawbacks, most notably that it is prone to leakage.
- Complete Home Spa
Since the device has just two buttons, you don’t get a simple on/off switch for the mist or for the lights; you have to cycle through every option to shut off either function.
- New York Times Wirecutter
November 1, 2018 | Full review
Each time you press it again (to switch your way through the timer options), it beeps again. This isn’t totally amazing, however, the beeps are very very faint, and one could almost ignore them.
- Essential Oil Haven
May 16, 2017 | Full review

Overall Product Rankings

1. ZAQ Dew Essential Oil Diffuser

Overall Score: 9.5
Reviews Included: 5

2. URPOWER 2nd Gen Aroma Essential Oil Diffuser

Overall Score: 9.3
Reviews Included: 7

3. ASAKUKI Premium Essential Oil Diffuser

Overall Score: 9.0
Reviews Included: 5

4. VicTsing Cool Mist Essential Oil Diffuser

Overall Score: 8.9
Reviews Included: 9

5. BriteLeafs PureAroma 2-in-1 Ultrasonic Aroma Diffuser

Overall Score: 8.4
Reviews Included: 4

6. URPOWER Aromatherapy Essential Oil Diffuser

Overall Score: 8.3
Reviews Included: 5

7. GreenAir SpaVapor+ Essential Oil Diffuser

Overall Score: 8.1
Reviews Included: 5

8. MIU COLOR Aromatherapy Essential Oils Diffuser

Overall Score: 7.8
Reviews Included: 4

9. NOW Solutions Ultrasonic Essential Oil Diffuser

Overall Score: 7.8
Reviews Included: 6

10. Vitruvi Stone Diffuser Oil Diffuser

Overall Score: 7.1
Reviews Included: 5

An Overview On Oil Diffusers

Essential oils have become a hot commodity over the last few years. Whether you’re using them for aromatherapy or you just want your living room or office to smell great, you’ll need an oil diffuser to release beautiful scents into your environment.

There are a few different types of diffusers, but ultrasonic diffusers are the most common variety that you’ll find online for personal use. (All four of our top diffuser choices are ultrasonic diffusers). They plug into your wall, but they don’t use heat the same way that other diffusers do.

Instead, they use ultrasonic vibrations to push your oils to the top of the water, and then they vaporize the water and oils. The vapor releases your essential oils into the air, and it also acts as a mild humidifier. Your essential oils will last longer in ultrasonic diffusers because they’re being mixed with water.

The amount of water your diffuser holds determines how long it can continuously run. The ZAQ Dew Essential Oil Diffuser holds 30 milliliters of water and can run for up to four hours on one fill. The ASAKUKI Premium Essential Oil Diffuser has a 500-milliliter capacity, and it can run for up to 16 hours.

Many diffusers also come with soothing LED lights that change color as they run. URPOWER’s diffuser has seven different colors to choose from, while the ZAQ Dew rotates between five fun hues.

You’ll need to plug your ultrasonic diffuser into the wall to turn it on. Since oil diffusers are connected to an outlet, they have different timer options for safer use. The VicTsing Cool Mist Essential Oil Diffuser has four time-setting modes (one hour, three hours, six hours and continuous). The URPOWER diffuser has timer options for 60 minutes, 180 minutes, 360 minutes or continuous use.

There are hundreds of soothing diffusers to choose from on the web, but our picks have been thoroughly vetted. Check out our tips and advice below to figure out which one is the best for you.

DWYM Fun Fact

That lavender oil that you’re dropping into your diffuser might help you relax, but the story behind lavender’s rise to success isn’t so soothing. In 1910, a French chemist named René-Maurice Gattefossé was working in his lab when an explosion took him by surprise. He stopped, dropped and rolled to put out the fires on his body, but he could tell that he had tissue damage on his arm from the burns. He was developing a type of gangrene from the laboratory’s gases.

He plunged his arm into a vat of water containing lavender oil and immediately noticed that it halted the gangrene in his arm. His tissues began to heal the next day.

René-Maurice continued studying essential oils, and he was the first person to use the word “aromatherapy” several years after his accident.

Today, we know that lavender oil isn’t a safe bet for treating burns, but René-Maurice’s experience in his lab sparked the aromatherapy revolution.

The Oil Diffuser Buying Guide

  • You’ll want to determine the square footage of whatever room you want to have your diffuser in before you buy. Smaller rooms (up to 200 square feet), can get away with smaller diffusers, like the URPOWER Aroma Essential Oil Diffuser. Larger rooms (up to 300 square feet) need a diffuser with a little more oomph, like the ZAQ Dew Essential Oil Diffuser.
  • Safety is key when you’re plugging a diffuser that uses water into an electrical outlet. All four of our top picks have an auto-shutoff feature for safety. When the diffuser has used up all of the water, it turns off to protect you and your home.
  • What type of color designs do you prefer? Many diffusers, like the VicTsing Oil Diffuser, have bands of LED lights that brighten up the center of the diffuser. Other units, like the URPOWER Aroma Essential Oil Diffuser, light up the entire diffuser with an array of beautiful colors.
  • If you have children or pets, you’ll want to place the diffuser on a surface that’s high off the ground. That will prevent your child or pet from knocking over the diffuser and getting water and oil everywhere. You’ll also want to make sure that the cord is tucked away behind your dresser or table and that the power outlet isn’t accessible to tiny hands.
  • If you need some extra humidity in your room, diffusers can add small amounts of moisture to the air for greater comfort during dry winter months. The VicTsing Oil Diffuser doubles as a cool mist humidifier for your bedroom or office, and our other top picks also provide gentle humidity to any room.
  • How much space do you have for your diffuser? Our top picks range from six and a half inches wide (on the ASAKUKI Premium Essential Oil Diffuser) to about seven inches wide (on the ZAQ Dew Essential Oil Diffuser), so they’ll easily fit on most desktops or tables.
  • Make sure you clean your diffuser regularly for optimal performance. You should rinse out your diffuser with water after each use, then give it a deep clean once a month. For the deep clean, just fill your diffuser halfway full with clean water, add ten drops of pure white vinegar and run your diffuser for five to 10 minutes. The white vinegar loosens any oils that might be stuck to the bottom of the diffuser. When you’re finished with the white vinegar rinse, pour it out and use a cotton swab or a soft cloth to wipe away any residue. Rinse once more with clean water, then enjoy your diffuser for another month.