Honeywell HFD-135 Permanent IFD UV Antibacterial Air Purifier Antibacterial air purification system with permanent IFD UV filter Removes airborne particles such as mold spores, dust, pollen, and cat dander Electronic controls offer 3 cleaning levels; 1- to 18-hour auto-off timer Low maintenance; quiet, efficient performance; no expensive filters to replace Measures approximately 14-1/4 by 15-1/2 by 19-1/3 inches