First Voice TS-4921-10 Heavy duty CPR Barrier Shields, One Size Fits All (Pack of 10)

Heavy duty CPR barrier shield. A lightweight one way valve face shield used to perform CPR. Face shield prevents mouth to mouth contact during CPR. One way valve eliminates blow back to caregiver or rescuer. Bag of 10. Packaged in heat sealed bag.
Package Dimensions ‏ : ‎ 5.6 x 5.1 x 1.4 inches; 0.48 Ounces
Item model number ‏ : ‎ TS-4921-10
Date First Available ‏ : ‎ June 30, 2014
Manufacturer ‏ : ‎ Think Safe Inc.
ASIN ‏ : ‎ B00LIKAO70
Country of Origin ‏ : ‎ China

One way valve protects from blow back to rescuer
Sterile
Bag of 10