Acetylene burners; acetylene flares for lighting; acetylene generators; air conditioners for vehicles; air cooling apparatus; air deodorizing apparatus; air deodorising apparatus; electric air dryers; electric air driers; air filtering installations; air fryers; air purifying apparatus and machines; air reheaters, namely, reheating furnaces for industrial purposes; air sterilizers; air valves for steam heating installations; air-conditioning apparatus; air-conditioning installations; alcohol ...