Hello,

how to use reusable respirator ? I got one, but i didn't buy it. There was no manual. I know you have to let it breath, after using it, but don't know the details. Or how to clean it etc. Don't know from what it is made. Google didn't find  even one page about instructions how to use reusable respirators. Have fucking no idea where to find it. Because it finds only generic tips, articles. Or pages that are being prioritized on the front page. I checked even WHO and there was no info in FAQ and i read already guidelines and didn't see it there. Really fucking strange given it is pandemic...