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vacuum cleaners, carpet cleaners, water purifying units for producing potable water from municipal or well water supplies, air conditioners, portable heaters, room air cleaners, air cleaners for furnaces, room humidifiers and humidifiers for furnaces, dehumidifiers, portable generators and heat engines therefore

WATER PURIFYING UNITS FOR PRODUCING POTABLE WATER FROM MUNICIPAL OR WELL WATER SUPPLIES, AIR CONDITIONERS, PORTABLE ELECTRIC HEATERS, HOUSEHOLD ROOM AIR CLEANERS, AIR CLEANERS FOR FURNACES, ROOM HUMIDIFIERS AND HUMIDIFIERS FOR FURNACES, DEHUMIDIFIERS, HOT WATER HEATERS AND HEAT GENERATING POWER ENGINES