6
Air grilles of metal; Louvre vents (Metal -) for buildings; Ventilation grilles of metal for fitting in windows; Metal ventilation channels; Ducts of metal for ventilating installations; Ducts of metal for ventilating and air-conditioning installations
11
Ventilation grilles being parts of extractor fans; HVAC systems (heating, ventilation and air conditioning); Axial fans; Room air fans; Ventilating exhaust fans; Suction ventilators; Roof fans; Roof fans; Radial air fans; Extractor fans; Electrically powered fans for ventilation purposes; Chimney blowers; Portable electric fans; Fans [air-conditioning]; Electrically powered fans for ventilation purposes; Ventilating fans; Fans [parts of air-conditioning installations]; Aeolian ventilators; Table fans; Electric window fans; Extractor units [ventilation]; Cooling installations; Ventilating installations; Heating, ventilating, and air conditioning and purification equipment (ambient); Electrically powered air blowers for ventilation purposes; Electrically powered blowers for ventilation; Central air conditioning installations; Electric space cooling apparatus; Electric space heating apparatus for household use; Ventilation [air-conditioning] installations and apparatus; Ionization apparatus for the treatment of air; Household air cleaners; Electric humidifiers; Electric room deodorizing units; Electrically powered blowers for dust extraction from the air; Air filters for industrial use; Air filters for industrial installations; Air filters for household use; Installations for humidifying; Installations for de-humidifying; Air humidifying installations; Ventilation installations for kitchens; Humidifiers; Motorised fans for air conditioning; Turbine ventilators [ventilation apparatus]; Ventilating fans for industrial use; Electrical fans being parts of household airconditioning installations; Fans for air conditioning apparatus; Space heating apparatus for industrial use; Vent covers [parts of air conditioning installations]; Portable air conditioners; Mobile air conditioning apparatus; Window air conditioning apparatus; None of the aforesaid goods for use in vehicles, camper vans, caravans, mobile homes, houseboats and boats
37
HVAC (Heating, ventilation and air conditioning) installation, maintenance and repair