Ozone and ion free! Silent Airfree Air Purifier technology does not emit ozone, and is ion free. The Silent Airfree Air Purifier reduces toxic and corrosive ozone, which may trigger asthma and destroy lung tissue. Better than other air purifiers, the Silent Airfree Air Purifier uses heat alone to incinerate airborne allergens. No harmful filter material is used in any way. There are no filters to replace, and it"s safe and easy to install. Just plug your Silent Airfree Air Purifier into any outlet, and begin eradicating the particles that aggravate allergies. Air purifier is fast, silent and economical.• Effective against mold spores, bacteria, viruses and dust mite allergens• Eradicates even the most minuscule particles• Portable - just plug in this air purifier and begin sterilizing your air• Destroys allergens with heat, yet emits no noticeable heat • No filters to replace, no parts to maintain• 550 square foot coverage-Avai