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 area-water solutions; Air filtering installations; Air filtering units; Air filters for air conditioners in vehicle passenger compartments; Air filters for air conditioning units; Air filters for domestic use; Air filters for heating and cooling registers; Air filters for industrial installations; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Apparatus for filtering drinking water; HEPA filters for household use; Industrial air filter machines; Water filtering apparatus; Water filters; Water filtration and purification units and replacement cartridges and filters therefor