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Humidifiers » ** BUYING GUIDE ** » Warm Mist or Cool Mist? » Ultrasonic Humidifiers

Ultrasonic Humidifiers

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Ultrasonic humidifiers are the quietest humidifiers around. They are so quiet, they are often described as being nearly silent. An ultrasonic humidifier uses the power of high frequency sound waves to vibrate a metal diaphragm at an "ultrasonic" frequency, thereby breaking the water in the humidifier down into an ultra-fine vapor mist. This vapor mist, which looks like a fog, is released into the air using a very small and quiet fan. Any minerals or impurities that are present in the water are released into the air with the mist. Many ultrasonic humidifiers use demineralization cartridges, which serve to trap these minerals before they are released into the air, although the demineralization cartridges are usually not 100% effective. You may want to use distilled water if you experience a problem with "white dust" settling on surfaces near the humidifier. Some ultrasonic humidifiers have a heating option as well, which heats up the water before releasing it into the air. This helps eliminate bacteria growth in the water, and also keeps the room from feeling too cold.
Pros: Cons:
Ultra quiet, near silent operation.
No wick filters to replace.
Low power consumption (when using cool mist).
Unless using distilled water, impurities can sometimes enter the air in the form of "white dust" (this can sometimes be controlled with a replaceable demineralization cartridge).
Most units are limited to small rooms only.
 Displaying 1 to 35 (of 41 products)   Result Pages:  1  2  [Next >>]  
    Product Name   Brand   Item   Price 
 AIR-O-SWISS Ultrasonic Humidifier 7135   AIR-O-SWISS Ultrasonic Humidifier 7135   AIR-O-SWISS   IA3328   $189.99  $179.99 
 
Type: Warm or Cool Mist Ultrasonic Output: 3.5 Gallons Room Size: 650 sq ft Speeds: 4 Digital Humidistat
 
 AIR-O-SWISS Ultrasonic Humidifier 7142   AIR-O-SWISS Ultrasonic Humidifier 7142   AIR-O-SWISS   IA3329   $209.99  $199.99 
 Type: Warm or Cool Mist Ultrasonic Output: 3.5 Gallons Room Size: 650 sq ft Speeds: 3 Digital Humidistat 
 AIR-O-SWISS Ultrasonic Humidifier 7144   AIR-O-SWISS Ultrasonic Humidifier 7144   AIR-O-SWISS   IA3457   $209.99  $199.99 
 
Type: Warm or Cool Mist Ultrasonic Output: 3.5 Gallons Room Size: 650 sq ft Speeds: 3 Digital Humidistat
 
 AIR-O-SWISS Ultrasonic Humidifier 7145   AIR-O-SWISS Ultrasonic Humidifier 7145   AIR-O-SWISS   IA3458   $149.99  $139.99 
 Type: Cool Mist Ultrasonic Output: 3.0 Gallons Room Size: 600 sq ft Speeds: Continuously Variable 
 AIR-O-SWISS Ultrasonic Humidifier 7147   AIR-O-SWISS Ultrasonic Humidifier 7147   AIR-O-SWISS   IA3596   $189.99  $169.99 
 
Type: Warm or Cool Mist Ultrasonic Output: 3.5 Gallons Room Size: 650 sq ft Speeds: 4 Digital Humidistat, Soft-touch controls
 
 AIR-O-SWISS Ultrasonic Humidifier U200   AIR-O-SWISS Ultrasonic Humidifier U200   AIR-O-SWISS   IA3974   $119.99  $99.99 
 Type: Cool Mist Ultrasonic Output: 1.8 Gallons Room Size: Small (up to 430 sq ft) Speeds: Continuously Variable 
 AIR-O-SWISS Ultrasonic Humidifier U650   AIR-O-SWISS Ultrasonic Humidifier U650   AIR-O-SWISS   IA3598   $249.99  $239.99 
 
Type: Warm or Cool Mist Ultrasonic Output: 3.5 Gallons Room Size: 650 sq ft Speeds: 3 Digital Humidistat, Soft-touch controls w/Display Dimmer
 
 Crane Adorable Cow Humidifier EE-4140   Crane Adorable Cow Humidifier EE-4140   Crane   IA3276   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Dog Humidifier EE-3190   Crane Adorable Dog Humidifier EE-3190   Crane   IA3631   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Dragon Humidifier EE-5058   Crane Adorable Dragon Humidifier EE-5058   Crane   IA3632   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Duck Humidifier EE-6369   Crane Adorable Duck Humidifier EE-6369   Crane   IA3633   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Elephant Humidifier EE-3186   Crane Adorable Elephant Humidifier EE-3186   Crane   IA3630   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Frog Humidifier EE-3191   Crane Adorable Frog Humidifier EE-3191   Crane   IA3275   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Hello Kitty Humidifier EE-4109   Crane Adorable Hello Kitty Humidifier EE-4109   Crane   IA3274   $49.95  $44.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours. Night Light 
 Crane Adorable Owl Humidifier EE-8189   Crane Adorable Owl Humidifier EE-8189   Crane   IA3879   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Panda Humidifier EE-3189   Crane Adorable Panda Humidifier EE-3189   Crane   IA3279   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Penguin Humidifier EE-0865   Crane Adorable Penguin Humidifier EE-0865   Crane   IA3278   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Adorable Pig Humidifier EE-4139   Crane Adorable Pig Humidifier EE-4139   Crane   IA3277   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 2.1 Gallons Run Time: 11-18 Hours 
 Crane Digital Germ Defense Ultrasonic Humidifier EE-8064   Crane Digital Germ Defense Ultrasonic Humidifier EE-8064   Crane   IA3884   $109.99 
 
Type: Warm or Cool Mist Ultrasonic Output: 2.5 Gallons Capacity: 1.2 Gallons Speeds: 3 Digital Humidistat, Ionizer
 
 Crane Drop Shape Humidifier - Blue (EE-5301)   Crane Drop Shape Humidifier - Blue (EE-5301)   Crane   IA3635   $59.95  $44.99 
 
Type: Cool Mist Ultrasonic Output: 2.3 Gallons Run Time: up to 24 Hours
 
 Crane Drop Shape Humidifier - Green (EE-5301G)   Crane Drop Shape Humidifier - Green (EE-5301G)   Crane   IA3637   $59.95  $44.99 
 
Type: Cool Mist Ultrasonic Output: 2.3 Gallons Run Time: up to 24 Hours
 
 Crane Drop Shape Humidifier - Orange (EE-5301O)   Crane Drop Shape Humidifier - Orange (EE-5301O)   Crane   IA3638   $59.95  $44.99 
 
Type: Cool Mist Ultrasonic Output: 2.3 Gallons Run Time: up to 24 Hours
 
 Crane Drop Shape Humidifier - Pink (EE-5301P)   Crane Drop Shape Humidifier - Pink (EE-5301P)   Crane   IA3636   $59.95  $44.99 
 
Type: Cool Mist Ultrasonic Output: 2.3 Gallons Run Time: up to 24 Hours
 
 Crane Drop Shape Humidifier - White (EE-5301W)   Crane Drop Shape Humidifier - White (EE-5301W)   Crane   IA3639   $59.95  $44.99 
 
Type: Cool Mist Ultrasonic Output: 2.3 Gallons Run Time: up to 24 Hours
 
 Crane Germ Defense Ultrasonic Humidifier EE-8065   Crane Germ Defense Ultrasonic Humidifier EE-8065   Crane   IA3885   $79.99 
 
Type: Warm or Cool Mist Ultrasonic Output: 2.5 Gallons Capacity: 1.2 Gallons Speeds: 3
 
 Crane Personal Ultrasonic Humidifier EE-5949   Crane Personal Ultrasonic Humidifier EE-5949   Crane   IA3882   $45.99  $39.99 
 Type: Cool Mist Ultrasonic Output: 0.45 Gallons Run Time: up to 8 Hours. Alarm Clock, Nightlight. 
 Honeywell HUT-150W Filter Free Cool Mist Ultrasonic Humidifier   Honeywell HUT-150W Filter Free Cool Mist Ultrasonic Humidifier   Honeywell   IA4234   $49.99  $44.99 
 
Type: Cool mist ultrasonic Output: 1.5 Gallons Capacity: 1.1 Gallons Speeds: Continuously Variable.
 
 Honeywell HUT-200B Ultrasonic Cool Mist Humidifier   Honeywell HUT-200B Ultrasonic Cool Mist Humidifier   Honeywell   IA4061   $59.99  $47.49 
 
Type: Cool mist ultrasonic Output: 1.5 Gallons Capacity: 1.0 Gallon Speeds: Continuously Variable. Top-Fill Pour-In Design
 
 Hunter 31011 Personal Ultrasonic Humidifier   Hunter 31011 Personal Ultrasonic Humidifier   Hunter   IA4050   $49.99  $36.99 
 
Type: Cool Mist Ultrasonic Room Size: Small Output: up to 1/2 Gallon Speeds: Continuously Variable Ideal for travel - uses your own water bottle
 
 Anton Ultrasonic Humidifier Azurro w/ Bonus Cartridge   Anton Ultrasonic Humidifier Azurro w/ Bonus Cartridge   Stadler Form   IA3862   $159.99  $139.99 
 Type: Cool Mist Ultrasonic Output: 1.0 Gallons Capacity: 0.8 Gallons Speeds: Continuously Variable 
 Anton Ultrasonic Humidifier Berry w/ Bonus Cartridge   Anton Ultrasonic Humidifier Berry w/ Bonus Cartridge   Stadler Form   IA4248   $159.99  $139.99 
 Type: Cool Mist Ultrasonic Output: 1.0 Gallons Capacity: 0.8 Gallons Speeds: Continuously Variable 
 Anton Ultrasonic Humidifier Black w/ Bonus Cartridge   Anton Ultrasonic Humidifier Black w/ Bonus Cartridge   Stadler Form   IA3611   $159.99  $139.99 
 Type: Cool Mist Ultrasonic Output: 1.0 Gallons Capacity: 0.8 Gallons Speeds: Continuously Variable 
 Anton Ultrasonic Humidifier Honeycomb w/ Bonus Cartridge   Anton Ultrasonic Humidifier Honeycomb w/ Bonus Cartridge   Stadler Form   IA3861   $159.99  $139.99 
 Type: Cool Mist Ultrasonic Output: 1.0 Gallons Capacity: 0.8 Gallons Speeds: Continuously Variable 
 Anton Ultrasonic Humidifier Metal w/ Bonus Cartridge   Anton Ultrasonic Humidifier Metal w/ Bonus Cartridge   Stadler Form   IA4247   $159.99  $139.99 
 Type: Cool Mist Ultrasonic Output: 1.0 Gallons Capacity: 0.8 Gallons Speeds: Continuously Variable 
 Anton Ultrasonic Humidifier White w/ Bonus Cartridge   Anton Ultrasonic Humidifier White w/ Bonus Cartridge   Stadler Form   IA3610   $159.99  $139.99 
 Type: Cool Mist Ultrasonic Output: 1.0 Gallons Capacity: 0.8 Gallons Speeds: Continuously Variable 
 Displaying 1 to 35 (of 41 products)   Result Pages:  1  2  [Next >>]  

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