Give CPR and save a life without putting yourself at risk of infection. Share this multi-pack of 12 CPR face shield masks with family and friends. CPR masks are a must when performing CPR or rescue breathing as they help prevent cross-contamination with the person receiving CPR. Each CPR keychain comes individually packaged with one CPR mask and a sturdy nylon keychain pouch. The semi-transparent face shield allows you to monitor the patients color and response through the mask. Each mask has a one-way ventilation valve with filter which helps protect you during CPR. It's highly compact 2"x2" size and it's integrated key ring makes it easy to keep with you at all times.