Re:Austria to make basic face masks compulsory in supermarkets
by gruez on Monday March 30, 2020 @08:55AM
(#22727629)
[deleted]
Re:Austria to make basic face masks compulsory in supermarkets
by xkapastel on Monday March 30, 2020 @09:23AM
(#22727794)
The virus is generally contained within a much larger droplet that is expelled when a person speaks, coughs, or sneezes. So the 120nm number is not necessarily relevant.
Re:Austria to make basic face masks compulsory in supermarkets
by mcsb4 on Monday March 30, 2020 @09:30AM
(#22727840)
As I wrote:
Bacteriophage MS2 - 23nm :
Surgical mask 89.52% filtering
Tea towel one layer 72.46% filtering
-> Thus still ~70% filtering of 23nm particles for the one layered towel. They didn't put the number for a two layered towel in there, I wonder if it did beat the surgical mask.
The original research was made by PHE - Public Health England and the results are:
B atrophaeus - ~1um :
Surgical mask 96.35% filtering
Double layer tea towel 96.71% filtering
Bacteriophage MS2 - 23nm :
Surgical mask 89.52% filtering
Tea towel one layer 72.46% filtering
The full paper is on researchgate, title: "Testing the Efficacy of Homemade Masks: Would They Protect in an Influenza Pandemic?"
Also every super market should have the use of hand sanitizer obligatory at the entrance.
There is a pretty good video for simulations of the epidemic spreading [1] - it is not going to stop until we either have a vaccine or ~60% of the population have antibodies. So the choice is to sit the next 12-18months at home or we fight the transmission of the virus.
Masks cost nothing compared to the economic disaster that we are running into. The virus spreads via mouth and nose and secondary via the hands. So just stop it at the source.
[1] https://www.youtube.com/watch?v=gxAaO2rsdIs