A respiration mask includes an upper portion connectible to a source of gas. A lower portion is connected to the upper portion. The lower portion is adapted to facilitate a leak resistant seal between the upper portion and a person's nose and mouth by surrounding the person's nose and mouth, when in use. The respiration mask also includes a deformation element incorporated into the lower portion. The deformation element establishes a plurality of sealing barriers between the lower portion and the person's nose and mouth. The upper portion encompasses a first material with a modulus of elasticity between 150 ksi and 200,000 ksi. The deformation element encompasses a second material exhibiting a hardness below one of 40 Shore A or 80 Shore OO and tear a resistance greater than 5 lbf/in. The plurality of sealing barriers establishes the leak resistant seal for a pressure up to 60 mm Hg.
