Bullard Clean Air Box provides three stages of filtration and carbon monoxide monitoring to help meet requirements. It removes oil, water, particulate, oil vapor and odors offering superior breathing air filtration. Case is constructed using polycarbonate material and wall mount units are made of powder coated steel for added strength. Box has automatic condensate drains that increases filter element life. It is provided with independent regulators for added convenience. It has filter change indicators that gives visual alert for operator to replace element. It can be automatically calibrated that consumes less than 90 sec and thus eliminating the need of tools. Self-contained box comes with 110 VAC power cord and is powered by eight AA batteries that works up to 80 hrs. It is included with high intensity 90 dB alarm and remote capable with strobe.