After-sales Service Provided:Engineers available to service machinery overseasmaterial:Cold rolled steel with powder coated or stainless steelFilter efficiency:H13, H14, U15Diffuser material:Cold rolled steel with powder coated or stainless steelApplication:Ceiling of clean roomDOP test port:With or notAir supply direction:Top or side of diffuserDiffuser type:Slope or perforated or circumfluence Show More