Berkshire Gamma Wipe® 300 is a highly absorbent, tubular, sealed-edge cleanroom laundered, two-ply sterile wipe recommended for use in environments rated ISO Class 3 and above. It is composed of 100% continuous filament polyester knit fabric. Each package is gamma irradiated sterile to a 10-6. Sterility Assurance Level. The features and properties of the Gamma Wipe® 300 provide levels of cleanliness, abrasion resistance, and chemical compatibility appropriate for cleaning general sterile processing areas.