Lamps; Air-conditioning installations; Air-conditioning, air cooling and ventilation apparatus and instruments; Drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; Electric radiators; Hand dryers; Humidifiers for central heating radiators; Lamp bulbs; Lighting apparatus, namely, lighting installations; Refrigerating appliances and installations; Ventilating exhaust fans; Ventilating fans for commercial and industrial use