Environmental Dust Containment Unit Number of Doors 4 Door Height 83-1/2 in Door Width 48 in Window Material Vinyl Number of Windows 4 Window Height 40 in Window Width 14 in Negative Air Port Dia 12-1/2 in Vacuum Port Dia 3 1/2 in Expanded Length 60 in Expanded Width 31 in Height 10 ft 6 in Width 48 in Collapsed Height 66 in Collapsed Length 12 in Collapsed Width 12 in 120 in x 20 in Flange Double Reinforced Polypropylene Floor Frame Material Powder Coated Steel