Protect against dangerous “chip fly-back” with the Guardair On-Guard® Chip Shield. OSHA Standard 1910.242(b) mandates that effective chip-guarding be utilized when cleaning with compressed air. Slide the On-Guard onto a safety air gun for immediate compliance. Molded from impact resistant, clear polycarbonate, On-Guard allows an unobstructed and safe view of work surfaces. Ideal for bench-top or up-close cleaning applications. Proudly assembled in the USA.