11 APPARATUS FOR LIGHTING, HEATING, STEAM GENERATING, COOKING, REFRIGERATING, DRYING, VENTILATING, WATER SUPPLY AND SANITARY PURPOSES, NAMELY, AIR PURIFICATION UNITS AND MACHINES, AIR-DEODORIZATION UNITS, AIR-DRYERS, DESICCATION UNITS, GAS PURIFICATION UNITS, AIR-PURIFICATION UNITS AND MACHINES, WATER PURIFICATION UNITS AND MACHINES, ULTRAVIOLET RAY LAMPS FOR NON-MEDICAL USE, AIR HEATERS, WATER TREATMENT UNITS USING OXIDATION, OZONIZATION, ELECTROCHLORINATION AND ULTRAVIOLET RADIATION FOR DOMESTIC, COMMERCIAL AND INDUSTRIAL USE; WATER DEAERATORS FOR DOMESTIC, COMMERCIAL AND INDUSTRIAL USE; WATER HEATERS