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DIffusers, Scent

20 Best Ultrasonic Diffusers & How To Use Them: 2019 Reviews

Looking for an ultrasonic diffuser? You’re in luck. The internet is busting at the seams with them. Not all ultrasonic diffusers are created equal, though.

These diffusers come in a variety of sizes, shapes, colors, and diffusing frequencies.

Maybe you don’t have time to read through all the reviews of products on Amazon. Take a look at this list to help you pick the best one.

1. Aroma Essential Oil Diffuser New Model

This diffuser is great for those who would like a diffuser that can run throughout the night in a bedroom, or throughout the day in an office or yoga studio.

Its natural-looking, imitation-wood design is aesthetically pleasing in a variety of different spaces. Its lighting feature is both elegant and relaxing.

It humidifies well, which can be helpful during the dry winter months, or if you experience dryness from allergies. It can be helpful for those who have asthma or other breathing difficulties.

If you are looking for a quality diffuser that is still affordable, this would be a great selection for you.

Pros & Benefits:
  •  Holds 530ml of liquid, which means it can run longer than other ones.
  • The quality seems to hold up- all reviews by customers are great, over a long period of time. No issues encountered.
  • Has color changing LED light with 7 color options.
  • Great as a dim night light.
  • Very quiet, with an automatic shut off.
  • Can run up to 16 hours.
  • 3 settings: 2 hour, 4 hour, 8 hour.
  • Power saving design. Lifetime guarantee.

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2. ASAKUKI 400ML Premium, Essential Oil Diffuser

This diffuser has a lovely, wooden, vase-like design. The wood grain looks natural and elegant.

The light setting on this one is subtle, making it a good nightlight which will not be too bright and distracting.

Due to the large amount it holds, this would be a good fit for a large bedroom or a large office space, where it would last throughout the night or day. It would be a lovely, relaxing addition to any yoga class.

Due to its strong scent, this one would be best used in a large space. This diffuser may be overpowering in a smaller room. This is a higher quality diffuser, for a reasonable price.

Pros & Benefits:
  •  Holds large volume of liquid (400ml).
  • Can run up to 14 hours. Has 4 settings: 1 hour, 3 hours, 6 hours, and continuous.
  • Has a strong scent even on the low setting.
  • Very quiet.
  • Made from safe materials.
  • Very subtle color changing LED light in 7 colors.
  • Easy to set up and clean.
  • Auto shut off.
  • Energy efficient.

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3. DLUIZ 550ml Essential Oil Diffuser

This ultrasonic diffuser is another in a trendy, wood-grain, vase or vessel shaped design. It also holds a large volume of liquid. However, as compared to others of a similar size, it gives off a surprisingly lighter scent.

This makes it ideal for those who would like a diffuser that lasts a long time in a large space, but don’t want a scent that knocks their socks off when they walk in the room.

This is ideal for in the home, especially near the kitchen and family room, as the scent won’t overpower the room and effect your gustatory experiences.

Another consideration is that this diffuser is a lower price point than many of the other large ones.

Pros & Benefits
  • Lasts long time (up to 10 hours)
  • Has 4 timer settings: 1 hour, 3 hours, 6 hours, and continuous.
  • 7 color changing LED light
  • Can set to stay on a single color.
  • Very quiet.
  • Automatic shut off.

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4. MOKSHA ELEMENTS Aromatherapy Diffuser 200ml Bluetooth Speaker

This sleek little ultrasonic diffuser comes with the unique added bonus of a Bluetooth speaker. This makes it an ideal candidate to be in your bathroom while you are getting ready for the day, or in a place you like to relax in the house.

Perhaps you like to wind down at the end of the day with a nice glass of wine and listen to your favorite tunes.

Maybe you like to listen to some calming music as you start the day with yoga. Either way, this is a rather multi-functional diffuser for its size.

This diffuser comes in either black or a dark wood grain.

Pros & Benefits:
  • Bluetooth speaker you can use to play your music.
  • Small size is easily portable.
  • 4 timer settings: 1 hour, 3 hours, 5 hours, stay on.
  • 4 LED Color changing light on top.
  • Auto shut off.
  • Comes with a relaxing lavender essential oil to start you off.

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5. Essential Oil Diffuser, 120ml-2 Pack (By Erligpowht)

This double pack is great for kids’ rooms. With its colorful, kid-friendly design and color-changing light, this can scare away the boogeyman while humidifying your child’s room.

You can also use this two pack as gifts or to distribute between two areas of your home.

This is by far the best deal for the quality you are getting. Its multiple misting and lighting options make it a flexible diffuser for those who aren’t sure what their needs will be.

Though this diffuser does not run as long as the larger ones, it gets the job done without breaking the bank.

Pros & Benefits:
  • Best deal- standard, 2 pack
  • Auto shut off
  • Changes between 7 different colors. Can have it stay on one or cycle through.
  • Can adjust brightness.
  • Continuous mist (4-6 hours) or intermittent (6-8hours).
  • Small design can easily fit on your desk or on a small table.

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6. Ultrasonic Aromatherapy Essential Oil Diffuser  (By MOSPRO)


This lovely ultrasonic diffuser features a rose shape set in a natural wood-looking design. It serves as an aesthetically pleasing, decorative piece, aside from its functionality as a diffuser.

This diffuser creates a relaxing environment in the home, either in a bedroom or bathroom. It can add to the romantic atmosphere of a night in together.

This diffuser would also be an elegant addition in a spa, or make a great gift, owing to its unique design. If you want an ultrasonic diffuser that looks nice and works well, but you don’t need all the fancy lighting features, this is the one for you.

Pros & Benefits:
  •  You can adjust the brightness of the light.
  • 2 mist modes: low and high.
  • 4 timer settings: 1 hour, 3 hours, 6 hours, continuous.
  • Auto shut off.
  • Moderately priced
  • Unique Design

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7. Leknes 120ml Essential Oil Diffuser- 2Pack

Like the 2 pack by Erligpowht, these small ultrasonic diffusers are a steal of a deal. At about 10 bucks a pop, they seem to be of decent quality.

They would be great in a child’s bedroom, and are portable enough you could easily take them on vacation with you. As they are small, they would fit nicely on your desk at work.

These are relatively new on Amazon, so they have not been purchased and reviewed by as many buyers. So far, however, they seem to get the job done, and are overall easy to use and to clean.

pros & benefits
  • Small and portable
  • Easy to clean
  • Great to have in a small space
  • 7 Color-changing LED light which you can adjust the brightness on
  • 2 pack is a great deal
  • 2 mist modes: continuous or intermittent
  • Auto shut off
  • Quiet

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8. ASAKUKI 700ml Premium, Essential Oil Diffuser

This ultrasonic diffuser holds the largest capacity at 700ml.

If you have a large space you would like to change the smell of or humidify, this is a great option for you. This can be used in a main room of your home to transform the entire smell and atmosphere of a whole level of your house.

This diffuser is growing in popularity, as people who have pets often need a diffuser that can be working around the clock in their home. Right now this one is on sale, but its usual price, which is much higher, is indicative of the powerhouse of a diffuser you are getting.

Pros & Benefits:
  • 7 LED color changing lights
  • Change mist mode
  • Adjust brightness
  • Can have cycling colors or stay on one color
  • Eco-friendly
  • Safe materials
  • 1 year warranty, 6 month money back guarantee.
  • Great price at present

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9. Ycind 300ml Essential Oil Diffuser


This is another ultrasonic diffuser in a wood-grain, vase-shaped design. This one offers more light than the others, however, through the raindrop-like cut out on the front.

With its visual appeal and somewhat large capacity, this one is versatile in where it can be used. Whether you want to brighten and freshen up your babies’ bedroom, or use this in a main area of the house, this would be a great personal diffuser.

Other places this could be used include a yoga studio or an office, if you have a large enough space for it to rest on.

Pros & Benefits:
  • Reasonable price
  • Large capacity (300ml), which lasts up to 8 hours
  • Auto shut off
  • 4 time settings: 1 hour, 2 hours, 3 hours, continuous
  • 7 LED colors, which can be adjusted brighter/ dimmer
  • Easy to set up/ use
  • Aesthetically pleasing design with natural wood look with raindrop shaped light.
  • Very quiet.
  • Can fill large spaces with scent.

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10. VicTsing 300ml Cool Mist Humidifier Ultrasonic Aroma Essential Oil Diffuser


This is another natural, wood-grain diffuser. It comes in 5 different color options: black, redwood brown wood grain, deep brown wood grain, black and white wood grain, or light brown wood grain (pictured above).

This one is both popular and highly reviewed on Amazon. It is versatile in function and looks great in all the color options.

This one is ideal for a yoga room, bedroom, living room, office, or wherever! Due to its size, it may be limited where it will fit or look the best, but because of its size it will last throughout the day or night if needed.

Pros & Benefits:
  • Dim or bright lights in 7 LED colors
  • Can cycle through or stay on one color
  • 4 time settings: 1 hour, 3 hours, 6 hours, continuous
  • Stronger or normal mist settings
  • Can last up to 8 hours (holds 300ml)
  • Auto shut off when water runs out
  • Aesthetically pleasing, comes in multiple color options

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11. Aromatherapy Essential Oil Diffuser, URPOWER 300ml Wood Grain


This is another one designed with imitation wood grain. This is a good, mid-sized diffuser which will still fit in a small space, but can hold enough water to last a long time.

If you need one that can last more than 8 hours, as many of the smaller ones only last 6-8 hours, then this would be a good choice. It is larger, without being as cumbersome as the 500-700ml ones.

Like its Ycind cousin, this one gives off more light than other wood-grain designed diffusers.

This is reasonably priced for its quality and capacity.

Pros & Benefits:
  • Can run up to 10 hours with 300 ml capacity
  • 7 LED colors
  • 4 timers: 1 hour, 3 hours, 6 hours, continuous
  • Quiet
  • Scent can fill a large room
  • Auto shut off

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12. URPOWER 2nd Version Essential Oil Diffuser


If you’re looking for a compact diffuser to use here and there for short periods of time, this is the one for you. This is better used in a smaller area, as it is not as power as some higher quality or bigger ones.

As a tried and true best-seller on Amazon, this one is a safe bet.

This diffuser has many of the bells and whistles larger diffuser offer, but will take up less space on your desk or end-table in your bedroom.

This comes in 3 different colors to fit your personal taste: dark wood grain, light wood grain, and white.

Pros & Benefits:
  • 7 LED light colors, with adjustable brightness
  • Lasts 3 hours on continuous mode
  • Lasts 6 hours on intermittent mode
  • Ideal for small spaces- won’t be overpowering
  • quiet
  • auto shut-off
  • portable

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13. URPOWER 500ml Aromatherapy Essential Oil Diffuser 


This is a basic, rounded, cylindrically-shaped diffuser. This is great for a large space in your home, such as a living room, basement, or large bedroom.

If you have pets, you can keep this diffuser going throughout the day, and arrive home to a pleasantly scented space. This one is powerful and will fill your home with whatever scent you put in it.

For its size, the features it offers, and the amount of mist it produces, this is a reasonable deal.

Pros & Benefits:
  • Large capacity (500ml)
  • 4 timer settings
  • 7 LED colors
  • Auto shut off
  • Easy to clean/ maintain
  • Gives a strong scent, even in a large space
  • Puts out a high volume of mist
  • Low price for the quality of product

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14. InnoGear Upgraded 500ML Wood Grain Aromatherapy Essential Oil Diffuser 


This diffuser offers a subtle, natural, wooden-looking design. This one is great for bedroom, as the light given off is subtle enough to allow sleep. Alternatively, you can turn the light off for a “mist-only” option.

For its size, it is not surprising that it lasts long. However, this one last longer than other 500ml diffusers. It has a stronger scent than others as well.

This is ideal in a large space, so that the scent does not become overpowering, or in a particularly smelly space, such as a baby’s bedroom, a room used often by pets, or a musty, dusty basement.

Pros & Benefits:
  • Subtle, 7 color changing LED light which can be switched off
  • 4 timers: 1 hour, 3 hours, 6 hours, continuous
  • Auto shut off
  • Large capacity (500ml)
  • BPA free material
  • Strong(10-15 hours) or weak mist (15-20 hours)
  • Auto shut off

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15. VicTsing 150ml Mini Aroma Essential Oil Diffuser


Like its older brother, this tiny diffuser has many modern features which make it competitive in the marketplace.

It’s attractive in a variety of spaces, with its dark wood grain design and thin rim of light around its middle. It is also available in a lighter wood grain color.

Although this one is small, it can run for 4-6 hours. It is great for a small space, like on a desk at the office.

Pros & Benefits:
  • 7 LED color changing lights, with adjustable brightness
  • BPA free
  • Auto shut off
  • 3 timer settings: 1 hour, 3 hours, and continuous
  • Great for a small space

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16. URPOWER Essential Oil Diffuser 150ml Wood Grain


This diffuser is similar in size and what it has to offer as the VicTsing mini 150ml. They are even the same price!

What sets this one apart is how it looks. This diffuser comes in 3 different colors: brown wood grain, black and white wood grain, and white. Its attractive, vase-like design lends itself to be a decorative piece in any setting.

Like the VicTsing, this is good for a place you need a small diffuser that will work well for a limited period of time in the day.

Pros &Benefits:
  • Quiet
  • Compact
  • 2 mist settings: intermittent (6 hours) or continuous (3-4 hours)
  • 7 color changing LED
  • Small size

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17. InnoGear 2nd Version Aromatherapy Essential Oil Diffuser


For its petite size (only 100ml), this diffuser lasts a long time! It shares features with many others, but is quite simple in its design.

Innogear’s 100ml diffuser is comparable to the 150ml diffusers put out by other companies, only this one lasts longer and puts out a stronger mist!

This diffuser is available in a dark wood grain, a light wood grain, or white. Its bright light makes it great for a bathroom night light or in a child’s bedroom at night.

This diffuser is the ideal candidate for a space where you don’t have much room for the diffuser, but need a strong, long-lasting aroma.

Pros & Benefits:
  • Auto shut off
  • 7 color changing LED light
  • BPA free
  • Continuous mist (7-9 hours), or intermittent mist (9-11 hours)
  • Quiet
  • Gives a very strong mist

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18. Soicare Ultrasonic Aroma Vase Diffuser 


This ultrasonic diffuser has a unique, vase-shaped design in either black or white. Light shines through its beautiful cut out design, creating a soothing effect.

This diffuser makes a nice, small decorative piece great for a living room or office. This is a newer one on the market, so it is not as tested as many others. However, so far all reviews have been very positive.

This diffuser is basic in function, but elegant in design.

Pros & Benefits:
  • 7 color changing LED light
  • Quiet
  • Compact (100ml), but can last up to 5 hours
  • Auto shut off
  • Easy to set up and clean
  • unique, elegant design

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19. ASAKUKI 500ml Premium, Essential Oil Diffuser


This diffuser is simple in design and excellent in function. It provides a strong mist for one of the longest times out of any others on the market.

Reasonably priced, this comes with all the features you would want in regards to lighting, timing, and mist options.

This works well in any room of the house, especially since you can adjust the mist to a lower setting for a smaller space.

This diffuser is highly rated by most customers. It is attested that the strong setting eliminates strong odors, such as pet odors, quickly.

This will give off plenty of light, which could be used as a night light if strategically placed in the house.

Pros & Benefits:
  • Different mist settings: low lasts 16 hours, high lasts 10 hours.
  • 4 Timers: 1 hour, 2 hours, 3 hours, and continuous
  • Can hold high volume of liquid so doesn’t need to be filled as much.
  • Easy set up
  • Has 7 color changing LED mood lights
  • Looks attractive in the home
  • Includes humidifier

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20. URPOWER 2nd Gen 300ml Aroma Essential Oil Diffuser Night Light Ultrasonic Air Humidifier


This is another popular pick on Amazon.

This diffuser has a simple, cylindrical design with color changing options and different mist settings. For its size, it lasts for a reasonable amount of time.

This is another one that would make a good night light, or would function well to provide some mood lighting in any room. This one would be a good choice for your office, a baby room, a child’s room, or your own bedroom.

One nice feature customers have noticed is that this naturally provides a soothing sound.

Pros & Benefits:
  • Has soft 7 LED light with optional color change
  • Eliminates odors quickly
  • Very strong scent
  • Has a large capacity (300ml) which will last through the night (up to 8 hours)
  • Easy to set up
  • Inexpensive
  • 4 timer settings: 1 hour, 3 hours, 6 hours, continuous

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Final Thoughts

When picking your diffuser, make sure you note whether they have a year warrantee, as even the best ones may have flaws. Companies such as Urpower, Soicare, and VicTsing have proven track records of great customer service.

We hope you enjoyed this list of the 20 best ultrasonic diffusers and their reviews for 2019. If you see one that’s not on the list and should be, let us know in the comments below!

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