Polypropylene is a material that is used to make medical facemasks
This material is hydrophobic and offers an element of filtration, while allowing breathability.
Made from Spunbond, meltblown polymer that resembles plastic in content, but feels like a fabric. Very comfortable to wear against the skin, polypropylene prevents the buildup of moisture, offering some protection from droplets in both directions.
Unike Cotton and Polyester, Polypropylene does not shed any micro particles, which makes it a perfect liner for facemasks.