Air-conditioning, air cooling and ventilation apparatus and instruments; Air cooling apparatus; Air purifying apparatus and machines; Air sterilizers; Air-conditioning apparatus; Air-conditioning installations; Bathroom exhaust fans; Extractor hoods for kitchens; Hot air blowers; Light bulbs, electric; Refrigerators; Cooling installations for water; Electric fans for personal use; Electric torches for lighting; Fans for air conditioning apparatus; Fireplace hearths; Refrigerating machines and installations; Ventilating fans for commercial and industrial use; Ventilation hoods