Mask cover has 3 layers of  fabric. Front layer with image is vapor fabric, mid layer is a sewn in filter, 3rd layer is 100% cotton fabric. 
Sizes:
Adult/ Teens 8.5x5.5
Xl 9.5x6.5
 
 
- This is not a medical device. It is not designed or intended to mitigate, prevent, treat, diagnose or cure any disease or health condition.