Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air exchangers for cleaning and purifying air; Air filtering installations; Air purification units; Air purifiers; Dehumidifiers; Filters for drinking water; Filters for fluids, namely, for water and area-water solutions; Filters made of fiber for water filtration; Humidifiers; Water filters; Water filtration and purification units and replacement cartridges and filters therefor; Water filtration and ...