High-grade impregnated activated carbon for removal of acid gases. Chemsorb 1202 is designed specifically as a high-grade impregnated activated carbon for use in critical filtration applications such as breathing air respirators. The proprietary reagents used to impregnate this high activity coconut shell carbon have shown superior results for the adsorption of airborne acid gases. Chemsorb 1202 is virtually dust-free, ammonia-free and contains no heavy metals such as copper, lead, mercury, nickel or chromium