The photocatalytic filter is a replacement filter for the Daikin KAC998A4E or KAC017A4E filter for the Daikin MCK75 and Daikin MC70L air purifiers.

The key function of the photocatalytic filter is to eliminate unpleasant odors, stop the growth of bacteria, viruses and microorganisms.

The effectiveness of the photocatalytic filter is brought about under the chemical reactions caused by the light. As a result, the substance of the filter is decomposed into hydrogen peroxide and the hydroxyl radical. These substances, in turn, oxidize the pollutants into harmless compounds of carbon dioxide and water. Photocatalytic filters are also designed to neutralize microorganisms.