Bullard Clean Air Boxes (CAB) offer superior breathing air filtration in a durable easy to use format. OSHA requires that employers provide their workers wearing airline respirators with Grade D breathing air. Bullard Clean Air Boxes provide 3-stage filtration and carbon monoxide (CO) monitoring to help meet this requirement.

Clean Air Box Three-Stage Filtration
Three stages of filtration remove oil, water, particulate, oil vapor and odors.

First Stage - The first filter element removes 95% of solid contaminants and bulk liquids from the breathing air, down to five microns, prolonging the life of the second and third stage elements.

Second Stage - This high efficiency filter element removes particulates and extremely fine oil mists down to .01 microns. The maximum remaining oil content is <.01 ppm by weight. Includes automatic drain. Filter efficiency is 99.9998%.

Third Stage - This activated charcoal element removes unpleasant oil and hydrocarbon vapors and odors from the air.

Bullard's Clean Air Box utilizes auto-calibration.