Guardian Technologies Germguardian Tower Air Purifier Air Purifier with True HEPA Filter and Humidifier Function for 150 Square Feet

The Germguardian air cleaning system is more than just a filter. Multiple levels of cleaning include HEPA, UV-C, and charcoal to help improve indoor air quality by capturing 99.97% of particles down to .3 microns in size. It is great for medium-sized rooms.