Winix WAC6300 4-Stage,True HEPA Air Cleaner with PlasmaWave Technology Uses carbon pre-filter and HEPA filter to capture 99.97% of particles as small as .3 microns. Energy Star-qualified model with automatic and sleep modes. Electronic display includes Air Quality Indicator, Filter Change Indicator, and easy-push buttons. Remote control lets you conveniently change modes or setting from anywhere in the room. Ultra-quiet and lightweight design.