Our production has been widely used in meeting room,studio,theater,audiovisual room,school,totel,conference hall,gym etc... Polyester fiber Acouctic panel is good for decoration,it has excellent performance of absorbing the low frequency sound,it's unharmful to human. NRC is around 0.8-1.1 And this product is an ideal choice for home decoration for its distinctive features such as sound absorption,flame retartant,insulation,heat insulation,moisture-proof,antimildew,easy cutting,no harm to body.Welcome to choose our products......