... efficient. remove formaldehyde,benzene, remove ammonia and TVO Photocatalyst,photocatalyst filter,photocatalyst filter for range hood and air conditionFunctions1. Air ... decompose the harmful compounds released from dead bacteria.3. Deodorization: it can remove odours giving out from smoke, ... dye in the shower room.Application of the photocatalyst in:household air-conditioner, central air-conditioning, ...