Heard same on R4 the other day - masks are primarily to stop / lessen risk of you (if you're asymptomatic) passing it on, rather than you protecting yourself.2 ply of anything seems to be the minimum requirement, used once then washed. I went down the hoodlum route and bought some bandanas:https://www.bandanashop.com/Only downside is that when I go to Sainsbury's it looks like I'm about to jack the place, not buy some coconut milk and The Guardian.
This may repeat some of the above but it's a good summary of the science I think from very reputable authors: https://www.fast.ai/2020/04/13/masks-summary/Summary: DIY masks are worthwhile if you're altruistic.
Any recs \ egs from esty.
I find a balaclava is really practical as my bandana kept slipping down. People are really respectful of social distance too, they even lie down. Such strange times.
Could this be the end of the great beard revival? In a work context I've always been told facial hair renders mask wearing pretty pointless as it greatly compromises face fit. The access company I work for operates a 'clean shaven policy' for this reason, as do many large construction sites.
and CDC said that the best way is still 2 metres but no virus filled mask.
especially when faced with experts in other areas (like behavourism, where much objection has come from).