04-04-2020, 07:19 PM
Repost: https://www.cidrap.umn.edu/news-perspect...sound-data (originally from here: http://forums.macresource.com/read.php?2...sg-2469181)
"Kellogg,21 seeking a reason for the failure of cloth masks required for the public in stopping the 1918 influenza pandemic, found that the number of cloth layers needed to achieve acceptable efficiency made them difficult to breathe through and caused leakage around the mask. We found no well-designed studies of cloth masks as source control in household or healthcare settings."
If it didn't stop Enza from coming in through your window, it's not likely it's gonna do much for Corona...
"Kellogg,21 seeking a reason for the failure of cloth masks required for the public in stopping the 1918 influenza pandemic, found that the number of cloth layers needed to achieve acceptable efficiency made them difficult to breathe through and caused leakage around the mask. We found no well-designed studies of cloth masks as source control in household or healthcare settings."
If it didn't stop Enza from coming in through your window, it's not likely it's gonna do much for Corona...