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Electrically powered air blowers for ventilation purposes; Electrically powered air blowers for air-conditioning purposes; Hot air blowers; Cold air blowing apparatus; Chimney blowers; Domestic air conditioning installations; Electric humidifiers; Electric air conditioners; Electric humidifiers for household use; Electric air purifiers; Electric space cooling apparatus; Electric space heating apparatus for household use; Electrically powered fans for ventilation purposes; Filters for air conditioning; Power filters for airconditioning; Air filters for air conditioning units; Installations for the cooling of air; Installations for humidifying; Installations for airing; Heating, ventilating, and air conditioning and purification equipment (ambient); Air treatment equipment; Air-conditioning installations; Air humidifying installations; Ventilating installations; Air-conditioning apparatus; Humidifiers; Air purifiers; Air reheaters; Heat pumps; Apparatus for ventilating; Fans [parts of air-conditioning installations]; Fans [air-conditioning]; Fans for air conditioning apparatus; Electrical fans being parts of household airconditioning installations