| abstract |
The present invention relates to an inorganic fiber having a photocatalytic action, a filtration medium having a thickness of at least 2 mm, which is homogeneous and has no visible holes, and is coated with a coating containing the photocatalytic action. Of felt, the mass per unit area of the felt is 30 to 80 g / m 2 , the coating is 5 to 80 wt% of the filtration medium, and the filtration medium is 1 m / s without pleats It relates to a filtration medium that exhibits a loss head of gas of less than 150 Pa. This medium is for containing a cleaner gas (eg air) and also comprises an apparatus for UV irradiation of the medium. This medium has excellent cleaning efficiency and very low head loss. |