Air Systems BB60-COIS 50 CFM Intrinsically Safe Breather Box schaefer ws-390 Lightweight system has swiveling design

Lightweight system has swiveling design which provides 360 deg mobility

Use this probe to check behind trim and baseboard molding

Schaefer 543S2G-3 Slant Wall Exhaust Fan 54"

Max Fan Diameter (inches): 8

Length (in): 17

Air Systems BB60-COIS 50 CFM Intrinsically Safe Breather Box schaefer ws-390 Lightweight system has swiveling designAir Systems BB60 COIS Intrinsically Safe Breather Box, 60 cfm, 79 cfm flow capacity, 4 couplings OLD PRODUCT NUMBER: BB50 COIS Air Systems International introduced the first portable breathing air filtration system in 1984 that was used in the closed position the Breather Box. That product, called the BB50 CO, has been the state of the art for breathing air filtration for over 40 years. Today in 2025, we have improved our breathing air portable