The Honeywell AirGenius 5 Air Purifier helps capture up to 99.9% of the following microscopic airborne particles: dust, pollen, pet dander, dust mite debris and smoke.* Recommended for large rooms (250 sq. ft.). This Honeywell air purifier can circulate air up to 4.8 times an hour. If you have pets or stale indoor air, air purifiers help deliver cleaner, fresher air. This quiet air purifier for home includes a washable permanent filter and a washable pre-filter for easy maintenance.*** It also features 5 air cleaning levels, floor accent light, oscillation and an auto-off timer option – 2, 4, 6, 8, 10, 12 hours. This Honeywell Air Purifier earned the ENERGY STAR label by meeting strict energy efficient guidelines set by the U.S. EPA. Disclaimers: * From the air that passes through the filter, 0.3 microns and larger. ** Based on 3rd party independent CADR testing for the smoke CADR value when operated at the highest level. Air circulation depends on many factors, such as room size and configuration. There is no guarantee that all of the air in a room will pass through the filter. *** The ifD® particle filter and foam pre-filer can be washed to clean. Permanent claim based on washing 4x per year for 5 years. The ENERGY STAR name and mark are registered trademarks owned by the U.S. EPA.