... EPS, 3 sides with PVC soft curtain , curtain color(white, transparent , blue)Intake & Exhaust fan: Generator dimension ... /yellow) electirc automatic damper exhaust air outside air capacity: 15000m3/hHeating system:Configure 1 set Riello G10 ... exchanger ,Heat productivty:100000Kcal/HFilter system: pocket pre-filter, ceiling filter , floor filter(fibreglass)Control system: fan switch, electric damper, ...