The most widely used CPR mask in the world! Since the introduction of the Pocket Mask, Laerdal has been providing high quality barrier solutions for over 40 years. The Laerdal Pocket Mask is especially designed to be used by the professional rescuer and first responder. It offers superior protection for both rescuer and victim. The Laerdal Pocket Mask combines a low resistance one-way valve with a disposable 3M Filtrate hydrophobic filter to help prevent the passage of liquid sand secretions. The distance to the patient allows the rescuer to check patient's mouth color, secretions and chest movement. Mask provides 99% viral and bacterial filter efficacy, has a pre-inflated cuff for effective and good seal, and can be used on adults, children and infants. The filter is replaceable and the mask is a latex-free design. Mask comes in a convenient plastic storage case.