apparatus for heating, cooling, drying, ventilating or sanitary purposes, namely, air purifiers, air fresheners being electric dispensers for air fresheners, air sterilisers, electric hot air hand dryers, hair dryers, air conditioning apparatus, electric room deodorizing units, air filtering installations, air purifying apparatus and machines, dispersion units for room deodorants, disinfectant dispensers for toilets, heating installations, ionisation apparatus for the treatment of air; air co...