Resusciation Mask Replacement Valve Login to view pricing. $19.23 SKU 858281 Quantity Quantity Add to cart Replaceable one-way valve which directs expired air away from operator Specifications Standard Package: 1 Replacement Valve Health Warning Always read the label and follow the Directions For Use.General Information Intended Purpose CPR mask is designed for CPR, provides a physical barrier between the rescuer and victim.