Air conditioning, heating, cooling, and ventilation equipment, apparatus and installations; air driers and air filtering equipment, apparatus and installations; humidification and dehumidification equipment, apparatus and installations; parts, fittings, and accessories for the aforementioned equipment, apparatus and installations; filters and filtering materials included in this class; filters for air conditioning, heating, cooling and ventilation systems; filters and filter materials being parts of household or industrial installations; filter pads, including air conditioning filter pads; cooling pads, including evaporative cooling pads; filter media for air conditioning and ventilation; evaporative cooling media; drift eliminators; air filters; wet wall pads; ventilation pads, including tunnel ventilation pads, air-conditioning filters