11
Extractor units [ventilation]; Electrical fans being parts of household ventilation installations; Electric fans [for household purposes]; Installations for airing; Aeration apparatus; Filters for exhaust extractors [parts of household or industrial installations]; Axial fans; Axial fans for air-conditioning; Filters for use with apparatus for ventilating; Air handlers; Air handling installations; Air heating installations; Air cooling apparatus; Apparatus for ventilating; Apparatus and installations for ventilating; Ventilating installations; Ventilation terminals; Residential ventilating units; Room air fans; Air circulation apparatus; Air heat recovery installations; HVAC systems (heating, ventilation and air conditioning); Electrically powered fans for ventilation purposes; Electrically powered blowers for ventilation; Electrically powered air blowers for ventilation purposes; Solar powered ventilation apparatus; Airstream generating apparatus; Hoods for ventilating apparatus; Motorised fans for ventilation; Extractors [ventilation or air conditioning]; Heating, ventilating, and air conditioning and purification equipment (ambient)
19
Structural elements (Non-metallic -) for use in building
37
Installation of ventilation and dust extraction systems; Installation of apparatus for ventilating; Retrofitting of ventilating installations in buildings; Retrofitting of heating, ventilating and air conditioning installations in buildings; Maintenance and repair of ventilating apparatus; Routine servicing of ventilating apparatus; Advisory services relating to the maintenance and repair of mechanical and electrical equipment; Apartment refurbishment services; Advisory services relating to the renovation of property; Advisory services relating to the maintenance of buildings; Building, construction and demolition; Building construction advisory services; Construction consultancy; Construction; Consultancy, information and advisory services relating to the construction of public works; Consultancy relating to residential and building construction; Advisory services relating to the construction of buildings and other structures; Building construction consultancy; Advisory services relating to the construction of public works; Electric appliance installation and repair; Installation of building automation equipment