The Honeywell QuietCare UV Tower Humidifier quietly provides natural relief from dry air up to 30% quieter than other tower models. The UV Germicidal technology allows water to be treated as it enters from the tank reducing 99% of germs. The ProTec antimicrobial treatment helps prevent the growth and migration of mold, fungus, algae and odor causing bacteria into the filter. Recommended for med-large rooms up to 1050 Sq. Ft.