‘Whether it’s a crummy mask or a great mask, it doesn’t matter. It works.’ — This doctor and biochemist explains why, when, and where masks matter pic.twitter.com/I425MhRiKo— NowThis Impact (@nowthisimpact) May 23, 2020
‘Whether it’s a crummy mask or a great mask, it doesn’t matter. It works.’ — This doctor and biochemist explains why, when, and where masks matter pic.twitter.com/I425MhRiKo