Keychain Bag Material: Nylon 
CPR Mask Material: Food-grade PE 
CPR Mask Color: Transparent 
Bag Size(LxW): 5cm x 5 cm / 1.96'' x 1.96'' (Approx.) 
Mask Size(LxW): 29cm x 20cm /11.42'' x 7.87'' (Approx.) 

1- Way Valve CPR Mask. 
The CPR Mask be packed in a keychain bag. 
It is compacted in shape, can be placed into any first aid kit and carried easily. 
It will low resistance unidirectional valve and water filter are combined to block fluid and secretions, valves and filters together played a barrier to rescue personnel and sick isolation.