Best Ultrasonic Room Humidifiers


To avoid problems caused by dry air at home you might want to consider using some of these best ultrasonic room humidifiers, Amazon bestselling products of this type with thousands of reports by users.

Such a humidifier will inject moisture in the air and improve its quality, and with this your health as well. It may reduce issues with cracked hands and chapped lips. These humidifiers can be found in various departments on Amazon, you can have them under the category vaporizers, aromatherapy diffusers, humidifiers, etc. So if you search it can be confusing, and this is why the list given below will help, the items here are collected from the bestsellers in such different categories.

What you have here are electrical devices with a diaphragm vibrating at an ultrasonic frequency and this creates water droplets that spread from the humidifier as a mist or fog. This may be helped with an integrated fan, but there are types without fans and these are very quiet, suitable for bedrooms and for people sensitive to sounds.

The terms ‘vaporizers’ or ‘aromatherapy diffusers’ usually imply that those devices heat or boil water and release warm steam in the air. So you can add some medical inhalants to help reduce coughs and allergy irritations.

You will also realize that most of them are very compact so these are portable room humidifiers and you can move them from room to room or even carry with you when you travel.

Are ultrasonic humidifiers dangerous?

I have seen this question being asked frequently, so no worry. These are clever designs and you will see that they switch off automatically if there is no water inside.

On the other hand, they operate at ultrasonic frequencies typically around 2.4 MHz, and we humans are created to hear in the range 20 Hz to 20 kHz, this is the sonic range and this is far below the frequency of these humidifiers. This is too high even for bats, some of them emit ultrasounds in the range 14 – 100 kHz and this is far below the frequencies here.

Can you use tap water in an ultrasonic humidifier?

It is best to use distilled water or demineralized water because it is almost free from minerals. These ultrasonic room humidifiers break up water particles and if there are minerals inside they will be disbursed around and invade your lungs, and will also build up in the unit. You will always have clear instructions about this in the specifications.

As mentioned above, some of these ultrasonic room humidifiers heat water so if you use tap water this may cause minerals deposited on or around the heating element, and you will have to clean with vinegar or citric acid. Much more about these gadgets in general you can read on Wikipedia.

Can you use boiled water in a humidifier?

Boiled water will not remove the minerals mentioned above. The same holds with any bottled water, so use distilled water as the best possible option. In the area where I live we have lots of limestone in the tap water.

So I did some experiments, take a cup of water and boil it in a shallow pan until everything evaporates. The result is some white limestone dust on the bottom of the pan. So this dust would be dispersed in the air and eventually finished in my lungs. Try this with any type of water you have and test, this is a simple way to know if there is limestone inside.

So back to the issue of boiling water, boiling will kill bacteria if they are present in the water, but minerals will not be removed.

But these tools need some maintenance in any case. Please see this video showing how to clean such a humidifier:

So here is our list of best ultrasonic humidifiers for home use ordered by ascending price. As you realize, they are very affordable and you have some really cool designs. If you follow the links you will realize that some of them have tens of thousands of reports by users. This is a lot of valuable information and you know what you are buying. Have a look:

InnoGear Essential Oil Diffuser, Upgraded Diffusers for Essential Oils Aromatherapy Diffuser Cool Mist Humidifier with 7 Colors Lights 2 Mist Mode Waterless Auto off for Home Office Room, Basic White
49,944 Reviews
InnoGear Essential Oil Diffuser, Upgraded Diffusers for Essential Oils Aromatherapy Diffuser Cool Mist Humidifier with 7 Colors Lights 2 Mist Mode Waterless Auto off for Home Office Room, Basic White
  • COMPACT SIZE FOR SPACE-SAVING: Without occupying much space, you can easily place this palm sized diffuser on your desk, countertop, or pack in carry-on while on the go.
  • 2 MISTING MODES: You can set it to intermittent mist (6-8 hrs working time) that diffuser mists and pauses every 30s, it goes for almost the whole night; Or set it to continuous mist (3-4 hrs working time) that keep misting until water runs out, it creates an instant fragrance in your room.
  • PP MATERIAL AND COOL MIST: Using PP material, this diffuser disperses a comfortable stream of room-temperature mist, which provides ideal coverage for small or medium sized room.
  • COLORFUL MOOD LIGHT: InnoGear essential oil diffuser has 8 soothing colors, light can switch from dim to bright. Great for creating atmosphere, meditation, or using as a night light.
  • WATERLESS AUTO-OFF: You can enjoy a restful sleep and keep this diffuser on at night without worrying about overheating. The diffuser will automatically shut off once the water runs out.
ASAKUKI 500ml Premium, Essential Oil Diffuser, 5 in 1 Ultrasonic Aromatherapy Fragrant Oil Humidifier Vaporizer, Timer and Auto-Off Safety Switch
15,329 Reviews
ASAKUKI 500ml Premium, Essential Oil Diffuser, 5 in 1 Ultrasonic Aromatherapy Fragrant Oil Humidifier Vaporizer, Timer and Auto-Off Safety Switch
  • 5-IN-1 AROMATHERAPY DEVICE: This ultrasonic essential oil diffuser is an amazing multifunction aromatherapy device unlike any other you've ever used. It features a large and easy to clean 500ml water tank, 7 different LED light colors, multiple mist nebulizer modes, as well as a safety auto-switch that prevents it from overheating in case it runs out of water.
  • GREATLY IMPROVES AIR QUALITY: Besides its uses in aromatherapy, this essential oil diffuser also functions as a humidifier. Use it to improve your home's air and atmosphere quality, cover the smell of pets or smoking, and protect you family from excessively dry air, microorganisms, allergens, dust, and more!
  • PREMIUM QUALITY MATERIALS: When it comes to our premium essential oil diffusers, we make a point of using nothing but the same ultra-high grade, safe, and eco-friendly PP materials baby bottles are made from, as well as state-of-the-art production processes and strict quality control.
  • A GREAT GIFT IDEA FOR EVERYONE: If you're in the market for a nice and practical gift, you can stop looking. This great aromatherapy essential oil diffuser is a thoughtful and handy present, one that everyone can benefit from. With a combination of style, design and function like that, it's a great hit!
  • 100% RISK FREE PURCHASE: At ASAKUKI, we have great faith in our essential oil diffusers. After all, we use them in our homes ourselves! Each one of them comes with a 1-year technical support. Your satisfaction is paramount!
VicTsing Essential Oil Diffuser, 300ml Oil Diffuser with 7 Color Lights and 4 Timer, Aromatherapy Diffuser with Auto Shut-off Function, Cool Mist Humidifier BPA-Free for Bedroom Home
18,308 Reviews
VicTsing Essential Oil Diffuser, 300ml Oil Diffuser with 7 Color Lights and 4 Timer, Aromatherapy Diffuser with Auto Shut-off Function, Cool Mist Humidifier BPA-Free for Bedroom Home
  • Perfect Gifts: The aroma diffuser features super modern wood grain, like a decorative piece. It is good choice to use this lovely diffuser as gifts to your friends and families, lovers.
  • 2 Mist and 4 Timer Setting. There are 2 options of mist for you to choose from: strong and standard mist. Also 4 Timer: 1H, 3H, 6H and continuous. Select a suitable timer mode & mist option and create a calming and relaxing environment.
  • Auto Off Function: Designed with waterless auto-off function, this aromatherapy essential oil diffuser will turn off automatically when runs out water. Perfect for bedroom, living room, office, spa, yoga.
  • Excellent Performance. This essential oil diffuser can last for 10 hours (in low mist level) with a water tank capacity of 300ml. The mist output of aromatherapy diffuser can reaches 50-70ml/h, perfect for space 20-30㎡, creating much more cool and fragrance.
  • Enjoy Your Leisure Time: Whenever you feel tired, turn on the TV, play games, or read a book, you could use VicTsing ultrasonic essential oil diffuser spreading elegant fragrance in the living room.
Sale
Crane Drop Ultrasonic Cool Mist Humidifier, Filter Free, 1 Gallon, 24 Hour Run Time, Whisper Quiet, for Home Bedroom Baby Nursery and Office, Blue and White
12,149 Reviews
Crane Drop Ultrasonic Cool Mist Humidifier, Filter Free, 1 Gallon, 24 Hour Run Time, Whisper Quiet, for Home Bedroom Baby Nursery and Office, Blue and White
  • VARIABLE SPEED SETTINGS: No matter the humidity level you would like to achieve we've got you covered. The Crane drop cool mist humidifiers offer variable output settings and an adjustable 360 degree mist lid making it easy to send the mist in any direction. The mist output is perfect for humidifying rooms up to 500 square feet, which is a standard medium to large sized room
  • WHISPER QUIET: Crane's drop humidifier runs whisper quiet which makes it the perfect option for light sleepers, kids, and especially babies. This humidifier is made with clean control anti-microbial material which reduces mold and bacteria growth by up to 99.96%
  • ONE GALLON TANK: The 1 gallon tank fits under a standard kitchen or bathroom sink, and has an easy to carry handle at the top. Our humidifiers are filter free, but we offer an optional demineralization filter (HS-1932) for those with excessive minerals in their water that screws directly into the tank
  • 24 HOUR RUN TIME: The drop humidifier runs up to 24 hours, so you don't have to worry about running it through the night. It also is equipped with an automatic shut-off safety feature that turns the unit off when the water runs out
  • EASY TO CLEAN: Crane's easy to clean humidifier design features a detachable bottom fill tank, which is recommended by health professionals for promoting clean humidifier habits. The water level sensor and cap also are removable, giving you access to clean the entire base. We recommend cleaning the humidifier based on frequency of use and provide many educational resources on how to clean your humidifier
Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier - Premium Humidifying Unit with Whisper-Quiet Operation, Automatic Shut-Off and Night Light Function - Lasts Up to 16 Hours
33,168 Reviews
Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier - Premium Humidifying Unit with Whisper-Quiet Operation, Automatic Shut-Off and Night Light Function - Lasts Up to 16 Hours
  • ULTRASONIC COOL MIST TECHNOLOGY: Safely moisturizes the air for up to 16 hours of continuous operation so you can breathe easy and get more restful sleep | High and low speed settings make it easy to adjust mist direction and speed to fit your comfort level
  • 1.5-LITER WATER TANK: Provides ideal coverage for bedrooms, offices, and other medium-sized rooms
  • OPTIONAL NIGHT LIGHT: Offers soothing glow for maximum relaxation
  • AUTOMATIC SHUT-OFF: Turns humidifier off when water level is low or the water tank is removed
  • WHAT YOU GET: Humidifier, AC power adapter, disk cleaning brush, user manual, industry-leading 5 Year Warranty, caring customer support 7 days a week, and the peace of mind that comes from a trusted brand with millions of customers worldwide.
Sale
Pure Enrichment® MistAire™ Silver Ultrasonic Cool Mist Humidifier - Lasts Up to 25 Hours, Whisper-Quiet Overnight Operation, 360° Mist Nozzle, Easy-Fill Tank, Auto Safety Shut-Off
4,657 Reviews
Pure Enrichment® MistAire™ Silver Ultrasonic Cool Mist Humidifier - Lasts Up to 25 Hours, Whisper-Quiet Overnight Operation, 360° Mist Nozzle, Easy-Fill Tank, Auto Safety Shut-Off
  • ULTRASONIC COOL MIST TECHNOLOGY: Safely moisturizes the air for up to 25 hours of continuous operation on low, and up to 12 hours on high, so you can breathe easy and get more restful sleep. Ideal coverage for bedrooms, offices and other medium-sized rooms.
  • IMPROVED FUNCTIONALITY: MistAire Silver includes the same premium components and functionality used throughout the MistAire line, but has been upgraded with sleep-friendly features like quieter beeps when the unit is turned on/off (great for sleeping babies) and a power light that automatically shuts off after 10 seconds (zero emitted light when the nightlight is off).
  • 360-DEGREE MIST NOZZLE: Rotating nozzle makes it easy to adjust mist direction and high and low settings speed to fit your comfort level.
  • AUTOMATIC SHUT-OFF: Safely turns humidifier off when water level is low or the water tank is removed.
  • WHAT YOU GET: Humidifier, AC power adapter, disk cleaning brush, user manual, industry-leading 5 Year Warranty, caring customer support 7 days a week, and the peace of mind that comes from a trusted brand with millions of customers worldwide.
Sale
Pure Enrichment MistAire XL Ultrasonic Cool Mist Humidifier for Large Rooms - 1 Gallon Water Tank with Variable Mist Control, Automatic Shut-Off and Optional Night Light - Lasts Up to 24 Hours
2,732 Reviews
Pure Enrichment MistAire XL Ultrasonic Cool Mist Humidifier for Large Rooms - 1 Gallon Water Tank with Variable Mist Control, Automatic Shut-Off and Optional Night Light - Lasts Up to 24 Hours
  • LONG-LASTING RELIEF: Ultrasonic cool mist technology safely moisturizes the air for 10 to 24 hours of continuous operation (depending on mist control setting) so you can breathe easily and get more restful sleep
  • 1 GALLON WATER TANK: Large tank and powerful steam output provides ideal coverage for large bedrooms, offices, and other rooms up to 500 square feet
  • OPTIONAL NIGHT LIGHT: Offers soothing lighting for maximum relaxation and operation in the dark (choose between blue, green, and red)
  • AUTOMATIC SHUT-OFF: Safely turns humidifier off when water level is low or the water tank is removed
  • WHAT YOU GET: Humidifier, AC power adapter, disk cleaning brush, user manual, industry-leading 5 Year Warranty, caring customer support 7 days a week, and the peace of mind that comes from a trusted brand with millions of customers worldwide
LEVOIT Humidifiers for Large Room Bedroom (6L), Warm and Cool Mist Ultrasonic Air Vaporizer for Home Whole House Babies, Customized Humidity, Remote Control, Whisper-Quiet, White
11,414 Reviews
LEVOIT Humidifiers for Large Room Bedroom (6L), Warm and Cool Mist Ultrasonic Air Vaporizer for Home Whole House Babies, Customized Humidity, Remote Control, Whisper-Quiet, White
  • Warm & Cool Mist: The humidifier provides both cool mist and warm mist to relieve you from congestion,sinus,dry skin, allergies,bloody noses,cold, flu.It is perfect for all year around using.
  • Auto Mode: The humidifier’s built-in humidity sensor automatically adjusts the mist level to maintain a comfortable level of humidity, so you can set it and forget it. If the tank runs out of water, the humidifier will automatically turn off
  • Aromatherapy: Add your favorite essential oils to the aroma box to give your room a clean, fresh aroma.
  • Perfect for Large Room: With a mist output of up to 500 mL/hr, the LV600HH can easily handle spaces as large as 753 ft2 / 70 m2. The large 1. 5 gal / 6 L capacity allows for 60 hours of continuous use with the low mist level.
  • Convenient Remote Control: Adjust settings in the middle of the night without leaving the comfort of your bed. On a schedule? Set a 1–12 hour timer so you won’t have to worry about accidentally leaving the humidifier on.
Sale
TotalComfort Warm & Cool Mist Ultrasonic Humidifier | 1.7 Gallon Tank, 80 Hour Runtime, Nightlight, Dual Tanks | Clean Tank Technology, BONUS 2 DEMINERALIZATION CARTRIDGES, Whisper-Quiet | HoMedics
290 Reviews
TotalComfort Warm & Cool Mist Ultrasonic Humidifier | 1.7 Gallon Tank, 80 Hour Runtime, Nightlight, Dual Tanks | Clean Tank Technology, BONUS 2 DEMINERALIZATION CARTRIDGES, Whisper-Quiet | HoMedics
  • WARM AND COOL MISTING OPTION: The Ultrasonic Humidifier by HoMedics features a warm and cool misting option. Humidify your room with cooling mist during hot summer months or warming misting during cold winter months. Adjust the intensity of the mist with the easy-to-use control buttons. Its hefty 1.7 Gallon Tank has a runtime of up to 80 hours! Its ultrasonic technology keeps your air free of harmful allergens
  • DUAL WATER TANKS FOR EXTENDED RUNTIME: HoMedics designed this humidifier with 2 water tanks for a combined capacity of 1.7 Gallons. With this large volume of water, you can humidify your home up to 80 hours! Relax during the dry winter months as this humidifies your air with a warming mist that will reduce dry skin and chapped lips. Each tank features a durable-plastic housing. This mister was crafted with auto shut off protection. It will power down when it gets too low on water
  • CLEAN-TANK TECHNOLOGY: The ultrasonic technology keeps your tank looking and smelling fresh and clean. Its clean mist anti-microbial technology helps prevent the growth of molds and mildews on the surface of the tank. It also prevents the buildup of “white dust” caused by hard water that can settle on your floor, appliances, and furniture. It features an on/off nightlight for toddlers who need a relaxing glow in the night
  • EASY TO USE AND CLEAN: TO USE: This mister is very user-friendly. First, unplug the unit and fill the large 1.7-gallon tanks and power it on. Choose to humidify your home with a warming or cooling mist. Adjust the mist output to your specification. TO CLEAN: Use a 50/50 mixture of vinegar and lukewarm water to clean the inside of the tank. Clean the water tank every 2-3 weeks depending on usage and water hardness
  • WHAT’S INCLUDED WITH YOUR PURCHASE: One HoMedics Cool & Warm Mist Ultrasonic Humidifier. Two BONUS demineralization cartridges. One user’s manual
Sale
Pure Guardian H7550 Ultrasonic Warm and Cool Mist Humidifier, Extension Wand, 90 Hrs. Run Time, 1.32 Gal. Tank Capacity, 570 Sq. Ft. Coverage, Quiet, Filter Free, Treated Tank Resists Mold
220 Reviews
Pure Guardian H7550 Ultrasonic Warm and Cool Mist Humidifier, Extension Wand, 90 Hrs. Run Time, 1.32 Gal. Tank Capacity, 570 Sq. Ft. Coverage, Quiet, Filter Free, Treated Tank Resists Mold
  • WARM AND COOL MIST HUMIDIFIER: The PureGuardian H7550 ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin; The easy to fill 1.32 gallon tank covers 570 sq. ft. rooms and runs up to 90 hours
  • SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights the growth of slimy mold and mildew on the surface of the water tank a common problem with traditional humidifiers
  • ULTRASONIC TECHNOLOGY: The H7550 disperses a soothing, cool mist into the air and is ultra quiet, making it ideal to have on while you sleep; A smart mist sensor monitors the level of humidity in the room and adjusts to your selected level
  • ADDITIONAL FEATURES: Digital display, night light, timer and 3 speed mist control; A low water indicator light lets you know when to refill the tank; Extended Reach Wands can be used to disperse an even mist throughout the entire room
  • PureGuardian: by Guardian Technologies offers a full range of small appliance based solutions for happier and healthier lives at home, focused on creating powerful, safe and innovative technologies to help facilitate healthier, happier home environments

Last update on 2020-11-07  / Affiliate links / Images from Amazon Product Advertising API

Thank you for reading. You might want also to check our separate list where some other types of room humidifiers are presented. So not all humidifiers are ultrasonic.

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