Air impellers for ventilation; Air inductor apparatus (ventilation); Apparatus for exhausting dust (ventilation); Apparatus for exhausting fumes (ventilation); Apparatus for exhausting gases (ventilation); Apparatus for exhausting mists (ventilation); Apparatus for exhausting particles (ventilation); Apparatus for extracting dust (ventilation); Apparatus for extracting fumes (ventilation); Apparatus for extracting gases (ventilation); Apparatus for extracting mists (ventilation); Apparatus for extracting particles (ventilation); Dust extraction installations (ventilation); Dust removing installations for ventilation; Electric fans for ventilation; Electrical fans being parts of household ventilation installations; Electrically powered air blowers for ventilation purposes; Electrically powered blowers for ventilation; Electrically powered fans for ventilation purposes; Extractor units (ventilation); Extractors (ventilation or air conditioning); Fans for the ventilation of food vending kiosks; Industrial ventilation apparatus; Motorised fans for ventilation; Process ventilation apparatus; Propellers (fans) for ventilation apparatus; Solar powered ventilation apparatus; Sound absorbers being parts of apparatus for ventilation; Ventilation (air conditioning) installations for buildings; Ventilation (air conditioning) installations for laboratories; Ventilation (air-conditioning) installations and apparatus; Ventilation (air-conditioning) installations for vehicles; Ventilation apparatus; Ventilation apparatus for vehicles; Ventilation grilles being parts of extractor fans; Ventilation hoods; Ventilation hoods for laboratories; Ventilation installations; Ventilation terminals