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Fans; electric fans; ceiling fans; free-standing fans; wall-mounted fans; electric fans for personal use; electric fans incorporating lighting apparatus; air cooling apparatus; air conditioning apparatus; air conditioners; air conditioners for vehicles; air sterilisers; air purifiers; electric air purifiers; portable air purifiers; personal air purifiers; wearable air purifiers; head-mounted air purifiers; air purifiers with audio capabilities; smart air purifiers; adaptive air purifiers for personal use namely, air purifiers reactive to a user's biometric data, body movement data, heart rate data, respiration rate data, and environmental data; air filtering apparatus for personal use; air deodorising apparatus; air freshening apparatus; humidifiers; dehumidifiers; extractor fans; extractor hoods; heat exchangers; heating apparatus; electric heaters; electric fans having combined heating and cooling capabilities; electric heaters having combined heating and cooling capabilities; air curtains; air washers; window fans; ventilation installations for vehicles; air filters; electrostatic air filters; filters for air purifiers; filters for air purifying apparatus for personal use; filters for portable air purifiers; air filters for domestic use; filters, being parts of household or industrial installations (term considered too vague by the International Bureau pursuant to Rule 13(2)(b) of the Regulations); parts, fittings and accessories for the aforesaid goods.