Their LIFE is in your hands…So is yours! Protect yourself with LIFE® CPR Mask. It is ½ the size of all leading pocket masks, invertible, universally fits both adult and child, superior seal of contoured soft medical PVC conforms to all faces. One-Way valve and filter provide hygienic protection which eliminates transmission of vomitous and contagious diseases. 3-M Filtrete hydrophobic filter for maximum protection placed above the valve to prevent fluid contamination from victim. Large airway opening prevents back-pressure. Clear mask and valve allow excellent observation of their interiors, and victim's color and status.