"CPR Mask" is a one-way valve mask that provides rescuer protection from victim's vomit and blood while performing CPR. It is a low-cost product that can be installed in public and private spaces to encourage more bystanders to perform CPR. The product can also be added to existing first aid kits. 

 

CPR Mask is easy to interpret and understand by a typical form of a surgical mask. It contains visible clues to its operation, without need for words or symbols, certainly without any need for trial and error. It provides signals that naturally indicate wearing CPR Mask just like wearing a surgical mask.