BB60 Series Breather Box | Air Systems synthetic rope lifeline Evaporative Cooling Hard Hat Liner:

Evaporative Cooling Hard Hat Liner: Attaches to standard hard hat headband

The PD11 is lightweight yet durable thanks to its welded aluminum body and zinc-plated steel hardware

and rescue

11-2014 and Z359

rather than gluing it—that means it won’t come off

BB60 Series Breather Box | Air Systems synthetic rope lifeline Evaporative Cooling Hard Hat Liner: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 the 21st century. Here is a few of the highlights of the upgraded new Breather Box,