Air Systems BB60-C Replacement Coalescing Filter - 50CFM vacuum with hepa filter The AV 4POLY HEPA filter

The AV 4POLY HEPA filter features an outer steel housing & micro fiberglass paper filter material which is separated with a corrugated aluminum sheet encased with a steel protective screen

Width: 16"

Fits through 1" opening

and EC5000 systems

Air Systems BB60-C Replacement Coalescing Filter - 50CFM vacuum with hepa filter The AV 4POLY HEPA filterAir Systems BB60 C BB60 Replacement "C" Filter 2nd Stage OLD PRODUCT NUMBER: BB50 C 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 breathing filtration unit to meet the demands of