The Responder1 CPR Mask’s design, filter and one-way valve make it a quality choice that provides protection during CPR. By creating a slight distance between the patient and First Aider the CPR Mask also makes seeing patient lip colour and chest movement easier. Incorporating an oxygen inlet, that facilitates the delivery of supplemental oxygen, is an option. This version also comes with an elastic head strap. Packaged in a hard case to protect the valuable PPE whilst not in use. This CPR Mask is perfect for the home, office &/or car on standby in case of a time of need. Reusable with correct sterilizing procedures.