... , air supply system, exhaust system, air filtration system, paint mist treatment system, organic exhaust treatment system, heating system, ... ×3900×2650mm(L×W×H) BasementGalvanized steel assemble, 300mm high, base cross and longitude beam made by quadrate steel. ... is 18000m3/h, manual damper. Filtering SystemPre-filter, 600G high efficiency filter (ceiling filter), floor filter (fibreglass), activated ...