Apparatus for filtering drinking water; Filters for drinking water; Flow restrictors for reverse osmosis water purification units; Industrial-water purifying apparatus; Tap water faucets; Water filtering apparatus; Water filtering units for household, commercial or industrial use; Water filtration and purification units and replacement cartridges and filters therefor; Water heaters; Water purification and filtration apparatus; Water purification installations; Water purification tanks; Water purification units; Water purifying apparatus; Water purifying apparatus and machines; Countertop water filters; Countertop reverse osmosis water purification units; Water purifying apparatus for household purposes; Water softening apparatus and installations; Water coolers; Water heaters; Water treatment equipment, namely, ultraviolet sterilization units; Water softening units; Water treatment equipment, namely, reverse osmosis filtration units; Water treatment equipment, namely, water filtration units and reverse osmosis units. Water filters; Water filtration pitchers sold empty; Water filtration bottles sold empty; Water control valves for faucets, plumbing fittings, namely, valves, filter faucets, namely, plumbing fittings in the nature of faucet filters, structural parts and fittings for water filters; Air cleaning units; Air humidifiers; Air humidifying apparatus; Electric lighting fixtures; Electric night lights; Electric light bulbs; HEPA filters for household use; Humidifiers for household purposes; Steam vaporizers for adding humidity to the air; Air filtering installations; Air filtering units; Air purification units; Air purifiers; Air purifying apparatus; Air purifying apparatus and machines; Air filters for furnaces, air conditioners, room air cleaners, home and building HVAC air ventilation and cleaning equipment, [ air humidifiers and dehumidifiers, automobile and other motor vehicle cabins, ] and other domestic, industrial and commercial uses and installations.