Air filtering installations; Air purifying apparatus; Air purifying apparatus and machines; Coffee filters not of paper being part of electric coffee makers; Electrolytic water generators for electrically decomposing tap water to generate electrolytic water and for removing chlorine odor from tap water; Filtering units for water filtering; Filters for drinking water; Filters, heaters and pumps sold in combination for use in swimming pools; Refrigerators and freezers for household use and replacement parts and fittings therefor; Water filtering apparatus; Water purification installations; Water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water; Water softening apparatus and installations; Water treatment equipment, namely, cartridge filtration units; Water treatment equipment, namely, reverse osmosis units