Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air filters for air conditioning units; Air filters for domestic use; Air filters for industrial installations; Color filters for use in lighting instruments; Coolant recovery systems, comprising filters; Dripper irrigation systems, comprised of filters; Filtering units for aquariums; Filters for photographic, cinematographic, video and performing arts lighting; Filters made of fiber for water filtration; Filters, heaters and pumps sold in combination for use in hot tubs; Filters, heaters and pumps sold in combination for use in swimming pools; Industrial air filter machines; Lawn sprinkler systems comprising pumps, valves and filters; Membrane filter cartridges for the separation of biomolecules in biopharmaceutical production; Metal cylindrical chamber and screen for use in filtering and removing settleable solids from liquid; Plumbing fittings, namely, faucet filters; Refrigeration equipment, namely, rapid food chilling units; Refrigeration equipment, namely, food and beverage chilling units; Refrigerators; Swimming pool water cleaning and filtering units; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; Water filtering units for aquariums; Water filtering units for domestic, commercial and industrial use; Water filters