Honeywell HPA5100 InSight Series HEPA Air Purifier console helps provide cleaner, fresher air in medium-large rooms of 938 square feet. It includes HEPA Filtration, which helps capture up to 99.97% of the following allergens and particles: dust, pollen, pet dander, dust mite debris and smoke. This Honeywell air purifier can filter & circulate air every hour in a room up to 938 sq.ft (24 times a day) and 4.8 times per hour in a small room of up to 190 sq. ft. rooms (115 times a day) up to every 12.5 minutes. If you have pets or stale indoor air, air purifiers help deliver cleaner, fresher air.Plus, this air purifier includes InSight Display at-a-Glace which illuminates to show the 4 cleaning level. This quiet air purifier has an auto-off timer option at 2, 4, or 8 hours, and a dimmer option for control panel lights. This Honeywell HEPA Air Purifier is part of our InSight Series. This product earned the ENERGY STAR label by meeting strict energy efficient guidelines set by the U.S. EPA. Always purchase Genuine Honeywell replacement air purifier filters. They are certified to help capture odors and the following microscopic airborne allergens and particles: dust, pollen, pet dander, dust mite debris and smoke. Other compatible filter replacements are not guaranteed to offer the same performance or efficiency. Recommended filter replacement: True HEPA R Filters 1x/yr. Odor Reducing Pre-Filter A 4x/yr. 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 ENERGY STAR name and mark are registered trademarks owned by the U.S. EPA.