Electric ceiling fans; Air cooling apparatus; Electric cooling apparatus; Electric cooling fans; Installations for the cooling of air; Electric fans for ventilation; Electrical fans being parts of household ventilation installations; Electrically powered fans for ventilation purposes; Extractor units (ventilation); Air conditioning fans; Electric fans for personal use; Electrical fans being parts of household air conditioning installations; Fans (air-conditioning); Roof fans; Room air fans; Room fans; Ventilating fans; Fans for ventilating; Motorised fans for ventilation; Propellers (fans) for airconditioning apparatus; Propellers (fans) for ventilation apparatus; Air impellers for ventilation; Ventilation apparatus