LAVFILL has been going through years specialized in researching, designing, manufacturing extractor fan since 1999,?cooperating with top research institute and testing institute?years to keep improving and optimizing the product performance. All the manufacture processes comply with ISO9001 guidelines, the products conform to EESS,CB,TUV,CE,RoHS,SEC,GCC,CCC standards, becoming top smart extractor fan supplier in China, he has grown up over 15 years in overseas market, prevails in Europe, Australia, South America, Middel East., winning worldwide high reputations and trusts in excellent quality and service!