CPR masks are a must when performing CPR or rescue breathing. This CPR keychain by Mars Wellness contains only premium components. The red fabric pouch with keyring has a velcro style closure also contains a pair of large exam gloves. The mask inside the keychain is manufactured by Mars Wellness, a name synonymous with quality resuscitation supplies. The compact, easy to use CPR Key mask features a CPR face shield with a one-way valve , and has elastic bands to secure the mask to the patient. When shopping for personal protection equipment like this CPR keychain, don't settle for generic alternatives