Westinghouse has made it safer for us to breathe in the air through its innovative NCCO air purification technology that cleans the air with active oxygen. The NCCO 1701 is a full size medical-grade true HEPA air purifier that can effectively clear the air of up to 99.99% of harmful particulates, bacteria, viruses, and odors. It decomposes toxic air and turns it into harmless carbon dioxide and water molecules. Features of our NCCO technology: •Sanitizes up to 99.97% of harmful air and odors •Kills up to 99.99% of germs and viruses within 15 minutes •Removes 99.95% of Influenza Viruses (H3N2) •Removes 99.52% of VOCs (volatile organic compounds) •Removes 99.72% of suspended particulars in smoke The Westinghouse NCCO 1701 full-size room air purifier covers 300 square feet of effective area and is ideal for bedroom, kitchen, or office use. It features a backlit, touch-control panel for easy operation. With 10 fan speeds, including turbo and eco modes, and a filter indicator light. The NCCO 1701 air purifier provides protection where you need it. A special safety feature turns off the purifier for 30 minutes after every 8 hours of operation. Use Westinghouse dust air purifiers to keep your indoor air clean and eliminate harmful materials and unpleasant odors in your home.