Quietly circulates air in a 180 sq. ft. room up to five times an hour (based on AHAM CADR rating in recommended room size) HEPA filter is 99.97% effective at removing particles 2 microns or larger from the air including bacteria, dust, mold, odors, pollen and viruses. UV technology helps reduce airborne bacteria, viruses, fungi and mold spores Odor absorbing pre-filter reduces common household odors faster Features 12 cleaning levels, optional on/off ionizer and oscillation controls and an auto-off timer for 1 - 18 hours Filter gauge indicates when it"s time to clean/replace filter for easy maintenance Long-life HEPA Clean filters can be vacuumed to clean or can be replaced Portable design for cleaner air from room to room * HEPA-Type filters help remove particles 2 mircons or larger from the air that passes through the filter MFG Brand Name : Honeywell MFG Model # : HHT-149-HD