Some of these links may be affiliate links and we may receive compensation when you sign-up for offers. See our disclosure policy. All information on this site is for educational and informational purposes only.
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.
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.
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.
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.
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.
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.
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:
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.
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
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.
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
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.
2 mist settings: intermittent (6 hours) or continuous (3-4 hours)
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)
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!