Honeywell Quiet Care Ultra Quiet Programmable HEPA Air Cleaner with Remote Control - QuietCare incorporates patented airflow technology with sound reducing features for ultra quiet high speed operation. This unit has a Remote Control for added convenience and uses a True HEPA Permanent filter which has 99.97% minimum effectiveness at capturing airborne particles, as small as 0.3 microns, from the air that passes through it. The 17005 is programmable operations and 3 Air Cleaning levels. The Intelli-Check feature electronically monitors filter usage and there is easy filter access for convenient replacement. Recommended Room Size 12 x 14 feet. 5 year limited warranty.