Dude. Just wear anything as a mask… Just show a little US ingenuity…
http://i.ebayimg.com/images/i/251216975564-0-1/s-l1000.jpg
https://i1.wp.com/trendingposts.net/wp-content/uploads/2016/04/A-Bra-Makes-the-Best-Face-Mask.jpg?resize=700%2C601&ssl=1