The perfect replacement for your air purifier! The Ivation Replacement Tio2 Photocatalytic Filter is a compatible filter for the IVAOZAP04 Ivation 5-in-1 HEPA Air Purifier & Ozone Generator. This filter uses titanium dioxide and UV light to get rid of harmful pollutants and odors in the air. It also helps to extend the life of the HEPA filter and the ozone generator. The filter is easy to install and replace, and it should be changed every 6 to 12 months depending on the usage and air quality. The Ivation Replacement Tio2 Photocatalytic Filter is a great way to keep your air purifier and ozone generator working efficiently and effectively.