Electric fans for personal use; Electric fans for ventilation; Window air conditioning apparatus; Fans (air-conditioning); Fans (parts of air conditioning installations); Extractor fans; Air cooling apparatus; Cooling appliances and installations; Cooling installations and machines; Air heater; Warm air heating apparatus; Apparatus for ventilating; Ventilating installations; Ventilating instruments; Electrically powered air blowers for air-conditioning purposes; Electrically powered air blowers for ventilation purposes; Air purifying apparatus and machines; Extractor fans and ventilating fans; Ventilation hoods; Ventilation apparatus for vehicles; Ventilation apparatus; ventilation hoods for laboratories; central heating radiators; Electrical radiators; Electric boilers; Boilers (other than parts of machines); Heat exchangers, other than parts of machines; Apparatus for producing steam; Installations for the production of steam; Apparatus for heating; Appliances for heating; Heating installations