Features:

• Tri-band Protection (ultrasonic technology, pre-heating, and Ionic Silver Stick)
• Intelligent Temperature Compensation / Optional cool or warm humidification
• LCD display with cleaning reminder and empty indicator
• Sleep mode / Built-in hygrostat dynamically adjusts to room temperature/humidity
• Output regulator button / Transparent water tank

Editor Reviews:

Product Description:
This efficient Air-O-Swiss Ultrasonic humidifiier uses several cutting edge technologies to achieve an optimum quality of environmental control. High-frequency vibrations generate a micro-fine mist, while an Intelligent Temperature Compensation system (ICS) measures humidity relative to the room temperature and automatically adjusts the output to achieve an optimum balance dynamically as conditions change. The water is kept clean with three separate processes that make up the Microbial Protection System: ultrasonic technology, pre-heating, and Ionic Silver Stick. The latter makes use of the proven anti-microbial qualities of Silver, which has proven effective against more than 650 types of bacteria without any chemical additives. When operated with the pre-heating function, the water is heated to 176°F before it enters the nebulizer chamber. The mist exits the appliance at a comfortable temperature of 104°F. This neutralizes the cooling effect of mist to keep the room temperature from falling, and also keeps the water cleaner. A replaceable demineralization cartridge ensures a hygienic, pure water mist, without lime scale or mineral residues. Exchangeable demineralization cartridge / Quiet operation /Easy to clean and handle Suitable for rooms up to 860 sq. ft. Power consumption - 40W w/o pre-heating, 140W w/ pre-heating / Moisture output - up to 3.5 gallons / 24 hrs Water capacity - 2.0 gallons Dimensions - 9.8 x 11.0 x 17.3 Weight - 8.0 lbs.

Rating : - a good ultrasonic
First off, this unit does not have a 3.5 gallon capacity. Its really
just shy of a 2 gallon capacity (perhaps 2 full gallons if you removed
the filter cartridge that sticks into the water tank).

This unit puts out a good volume of mist at a high rate and does it
quietly. It's about twice as fast as my other (older) unit and
quieter to boot. The nozzle can spray in two directions, which
I find helps distribute the mist into the air better.

I don't use this with hard water -- if you plan on using hard water
I just wouldn't use an ultrasonic humidifier, get one of the wicking
humidifiers.

The water reservoir has a sturdy handle that is nice for carrying
when its full. However, a couple negatives for me are that the
tapering of the reservoir make it look unstable when you're filling
it (haven't had it fall over though). Also, I keep this up on a
dresser, and its hard to put the full reservoir (which is heavy)
back onto the unit. That would be less of an issue if kept on a
table or floor.

Overall, I'm happy with this unit and its been running almost
continuously this winter.