CPR Shield / Barrier CPR Shield / Barrier: When it comes to protecting yourself while trying to save a life, don't settle for anything less! Designed to protect the rescuer from the victim's oral secretion, preventing unsafe contamination while aiding in the administration of proper CPR technique. One way valve and solid molded design assures that the barrier will not leak or fall apart during CPR. Nylon washable double stitched key-ring pouch also available in Red, Green or Blue(see items #PRC-RS8631R, PRC-RS8631G & PRC-RS8631B). Soft clear medical grade vinyl face piece allows for monitoring of patient. One way valve and HEPA Filter with extra release holes to eliminate blow back. Bite block to prevent injury to patient. Clear tamper evident waterproof packaging. Dimensions of the nylon pouch: 3.75"" x 2.5"". The product referenced on this detail page is sold be 1 Pack of 10.