An anechoic chamber that conforms to the EMC standard, with open sites that do not reflect in the front, rear, left, and right as well as upward. The purpose is to measure emissions and immunity of various electronics-related products including home appliances, OA equipment and communication equipment.

Various types of anechoic chambers can be constructed by combining flame retardant, low price, non-flammability and radio wave absorbers that can be used in vacuum.