The ADC 4053 AdSafe CPR Pocket Resuscitator features a high efficiency and low resistance one-way valve that minimizes the possibility of cross-contamination. The 15mm O.D. connector can be attached to any standard ventilation and oxygen equipment. The ergonomically shaped mask with soft-air cushion for leak-free performance, easy grasp, and patient comfort can be used on adults or inverted for infants/children.