ventilation hoods, Electric fans for personal use, Air purifying apparatus and machines, air filtering installations, Drying apparatus and installations, Fans [air-conditioning], air-conditioning apparatus, heating installations, Air conditioning installations, fans [parts of air-conditioning installations], cooling appliances and installations, ventilation [air-conditioning] installations and apparatus, heat pumps, dehumidifiers, humidifiers, air sterilisers, ventilation (air-conditioning] installations for vehicles, germicidal lamps for purifying air, air conditioners for vehicles, ionization apparatus for the treatment of air or water.