Check the listing for details. 1000pcs/pack Oxygen Inlet One-Way Valve For CPR Pouch Face Shields CPR Training. Condition: New. Listed at 300.00 USD. Welcome to Elysaid We are from China. We sell First aid kits, Health&Beauty care Items ,Medical equipments ,Home&Garden tools and many more. We more professional on AED trainer , CPR Face masks and health care equipment which all with a high cost-performance .Welcome to wholesale! Please add me to your list of favorite sellers. Thanks! These are the accessories of pouch CPR face mask for Training Mouthto mouth face mask with one-way valve to avoid any direct contactbetween the patient and rescuer on mouth, nose and face , and helpovercome hesitation to start resuscitation. Transparent dome allows rescuer to visually check for patient’s lip colour and vomitus Oxygen inlet facilitates increased oxygen delivery to patient, standard connection 22mm.Mouthpiece opening 18 mm. 1000pcs/pack Oxygen Inlet One-Way Valve