The GERMGUARDIAN Air Purifier provides clean air using the power of UV-C light technology. The UV-C technology works with Titanium Dioxide to reduce airborne bacteria, viruses, germs and mold spores. The sanitizer has 2 speeds and can fit on a tabletop making it ideal for any room. There are no filters required and only a single UV-C light bulb that needs to be replaced every six to eight months depending on use. 1 year manufacturer warranty.