Re: [Vo]:Useful information on masks

On Sun., Aug. 9, 2020, 8:29 p.m. Jed Rothwell, wrote: > H LV wrote: > > >> When you think about it, I don`t think masks have ever been designed >> explicitly to keep stuff in. >> As far as I know masks have traditionally been designed to keep stuff >> out. Keeping stuff in is a new concept. >> >

Re: [Vo]:Useful information on masks

H LV wrote: > When you think about it, I don`t think masks have ever been designed > explicitly to keep stuff in. > As far as I know masks have traditionally been designed to keep stuff out. > Keeping stuff in is a new concept. > I believe you are wrong about that. Surgical masks are worn to pr

Re: [Vo]:Useful information on masks

When you think about it, I don`t think masks have ever been designed explicitly to keep stuff in. As far as I know masks have traditionally been designed to keep stuff out. Keeping stuff in is a new concept. Harry On Sun, Aug 9, 2020 at 5:29 PM Jed Rothwell wrote: > This is off-topic, but imp

[Vo]:Useful information on masks

This is off-topic, but important. It turns out that cheap, throw-away "surgical mask, 3-layer" type masks work best. These are the ones you can buy anywhere nowadays. Office Depot sells them cheap. See this research article in Science: https://advances.sciencemag.org/content/early/2020/08/07/sci