Humidifiers

Cool mist models are the most popular type, and recommended when using a humidifier around children.

Warm mist only model; potential scalding from high steam temperatures.

Dual-mist unit; Output slightly higher, Efficiency lower, in warm-mist mode.

Programmable indicates that a model can be instructed to turn on and off at preset times and at preset humidity settings.

Humidistat indicates the presence or absence of a digital or analog device to measure relative humidity.

Antimicrobial claims indicates a claim of resistance to microbial growth.

Daily maintenance is required indicates that a manufacturer specifies cleaning every day.

Weekly maintenance is required indicates that a manufacturer specifies cleaning or disinfecting weekly

Need to replace filter or wick indicates that a model needs to have an absorbing filter or other medium replaced at regular intervals

Need to replace cartridge indicates that a model needs to have a demineralization or an antimicrobial cartridge replaced at regular intervals.

Nightlight or glow-in-the-dark indicates that a model illuminates the area around it.

Empty tank indicator is a feature that alerts a user when the tank, or reservoir, need to be refilled.

Automatic shut-off when empty indicates that a model will turn off when it runs out of water. With evaporative models, this may occur after the unit runs long enough to dry out the filter

Style is the method used to add moisture to the air.

Claimed humidification area is the manufacturers' intended room size or use area for a unit.

The actual measured output of water in gallons per day.

Claimed maximum run time (hrs.) is the number of hours that the manufacturer states the model will run on the lowest setting.

Cord length (in.) the length of the power cord in inches.

Claimed wattage indcates the power consumption of a model on high setting as claimed by the manufacturer