Apparatus for exhausting gases (ventilation); Apparatus for extracting fumes (ventilation); Apparatus for extracting gases (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); Motorised fans for ventilation; Solar powered ventilation apparatus; Ventilation apparatus; Ventilation installations; Fixtures for lavatories; Electrical installations for sanitary purposes; Electrical installations for ventilating; Installations for sanitary purposes; Installations for ventilating