External frame£ºStainless steel 304 or cooled-rolled spaying steel Or galvalume Fan: low vibration, low noise; EBM on request air flow : 0.45 m/s Purification at the highest level: 100 levels Efficient filter: domestic glass fiber filter System control mode: DC or AC Use the highest temperature, humidity£º80¡æ¡¢80% XN-FFU-122S/z 1220/610/340 XN-FFU-117S/Z 1170/570/340 XN-FFU-61S/Z 610/610/340 XN-FFU-57S/Z 570/570/340.