Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air filtering installations; Air filters for air conditioners in vehicle passenger compartments; Air filters for air conditioning units; Air filters for domestic use; Air filters for industrial installations; Filters and filtering devices for air and gas conditioning; Filters for air conditioning; Filters for air extractor hoods; Filters for drinking water; Filters for fluids, namely, for water and ar...