MEDIUM FOR PHOTOCATALYTIC FILTER

摘要

The invention relates to a photocatalytic-action filtration medium having a thickness of at least 2 mm, homogenous and without any opening visible to the naked eye, that comprises a felt of inorganic fibres in which the fibres are coated with a coating containing a photocatalytic-action catalyst, said felt having a basis weight of between 30 and 80 g/m2, said coating representing 5 to 80% of the mass of said medium, said medium having a gas head loss lower than 150 Pa at 1 m/sec in a non-folded state. The medium is intended for containing a gas (e.g. air) cleaner, and also comprises a system for the UV-lighting of said medium. The medium has an excellent purification efficiency and a very low head loss.