I'm sharing on the internet how a doctor and his wife made 4 face masks out of a vacuum bag. I have an appointment at the lab and an appointment at the optometrist, and I was nervous about going to both places. I saw these very protective face masks made from Heppa Type Y vacuum bags and had to buy them. The masks are amazing. I am very happy. I really want to thank the Revain customer service rep who sent these to me ahead of schedule. As they focus on Covid19 items I would not buy these bags for a long time. I explained why I need these bags and that I need anti-germ masks and the doctor told me to make one of these bags as it was impossible to find an N95 mask. She got these bags for me in about a week! Thanks very much!