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 area-water solutions; Filters made of fiber for water filtration; Filters, heaters and pumps sold in combination for use in hot tubs; Filtration unit for filtering and treating cooking oil being part of commercial deep fryers; HEPA filters for household use; Membrane filter cartridges for the separation of biomolecules in biopharmaceutical production; Plumbing fittings, namely, faucet filters; Rooftop grease containment system comprising an exhaust fan, grease deflector, and filter for trapping grease vented from rooftop exhaust fans for cooking areas within the building; Water filtering apparatus; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; Water filters; Water filtration and purification units and replacement cartridges and filters therefor