AHAM is the U.S. based trade association of the home appliance manufacturing industry. Its members include the manufacturers of “major,� “portable,� and "floor care" home appliances and the companies who supply and service these manufacturers. Major home appliances include refrigerators, refrigerator/freezers, freezers, dishwashers, clothes washers and dryers, trash compactors, microwave ovens, room air conditioners, portable air conditioners and dehumidifiers.