Air balancing dampers; Air conditioners; Air conditioning filters; Air control dampers; Air delivery apparatus for heating buildings; Air delivery apparatus for use in industrial processes; Air delivery apparatus for ventilating buildings; Air distribution apparatus; Air distribution installations; Air distribution units; Air handling apparatus; Air handling installations; Air heating installations for commercial use; Air heating installations for industrial use; Air heating installations for residential use; Air impellers for ventilation; Air conditioning for data processing rooms; Air processing (conditioning) apparatus; Air-conditioning apparatus; Air conditioning installations for commercial use; Air conditioning installations for industrial use; Air conditioning installations for residential use; Air-conditioning installations; Air conditioning apparatus for commercial buildings; Air conditioning apparatus for commercial use; Air conditioning apparatus for industrial use; Air conditioning apparatus for office use; Air conditioning apparatus for public buildings; Air conditioning apparatus for residences; Air conditioning apparatus for residential use; Air conditioning apparatus for stores; Air conditioning apparatus for use in clean rooms; Air conditioning apparatus for use in operating theatres; Air conditioning apparatus for use in food processing; Apparatus for air conditioning; Apparatus for the distribution of air; Central type air conditioning apparatus; Cold air blowing apparatus; Combined heating and air conditioning apparatus; Domestic air conditioning apparatus; Domestic air conditioning installations; Electrically powered air blowers for air-conditioning purposes; Electrically powered air blowers for ventilation purposes; Electrically powered blowers for dust extraction from the air; Air conditioning fans; Air-conditioning fans; Electrical fans being parts of household air conditioning installations; Fans (air-conditioning); Fans (parts of air conditioning installations); Fans being parts for air conditioning installations; Fans being parts of air conditioning installations; Fans for air conditioning installations; Fans for use in air conditioning; Filtering installations for air; Filters for air conditioning; Filters for use with apparatus for air conditioning; Impellers (parts of air conditioning apparatus); Installations for air extraction; Installations for the distribution of air flow in buildings; Installations for the heating of air; Installations for the regulation of air flow in buildings; Linear air diffusers; Louvres being air conditioning apparatus; Mobile air conditioning apparatus; Motorised fans for air conditioning; Propellers (fans) for airconditioning apparatus; Radial air fans; Residential air conditioning units; Supply air diffusers; Variable air volume apparatus; Ventilation (air conditioning) installations for buildings; Ventilation (air conditioning) installations for laboratories; Ventilation (air-conditioning) installations and apparatus; Level control valves; Level controlling valves in tanks; Level regulating valves (other than parts of machines); Liquid level control apparatus (valves); Regulating valves (level controlling in tanks); Solenoid controls for automatically operating valves (parts of heating installations); Mechanisms for controlling fluid level in tanks (valves); Regulators (valves) for level controlling in tanks; Valves for controlling levels in tanks; Water regulating valves (regulating accessories); Water regulating valves (safety accessories); Fittings for the draining of water; Installations for draining condensation; Self-draining apparatus being parts of water supply installations; Self-draining instruments being parts of water supply installations; Venturis; Chiller units being parts of water cooling installations; Air cooling apparatus; Air delivery apparatus for cooling buildings; Air processing (cooling) apparatus; Cooling apparatus; Cooling installations and machines; Installations for the cooling of air; Installations for cooling; Installations for cooling for scientific purposes; Evaporative cooling apparatus; Evaporative cooling towers