It is unfoldable. Prevents direct contct during artificial respiration. Transparent dome allows rescuer to visually check for patient’s lip colour and vomitus. Made of durable plastics for easy cleaning and long product life. Latex free. Optional accessories: alcohol pad, PVC glove This CPR mask rescue kit comes with a reusable, easy-to-clean, pocket size CPR mouth barrier with a transparent dome that securely fits the faces of infants, children, and adults. This CPR mask kit helps protect rescuers in an emergency situation. Features a replaceable one-way valve with biological filter in one housing.