Lined with POLYPROPYLENE. (this what is is used in N95)
Supima cotton is grown in the Us in California and Arizona.
There are strict standards for it to make sure its worthy of one the best cotton.
Made in USA
Masks are not intended for medical use.
Polypropylene masks should be washed in cold or warm soapy water and hang to dry, or VERY LOW dryer heat. Polypropylene, being a plastic polymer, has a low melting point and care should be taken to keep the material away from high heat or open flames. Do not use fabric softeners or dryer sheets or put in the dryer with heat. For best results, wash in cold, or warm water and hang to dry.