Just Google it, there's tons of stuff, it's standard knowledge in the medical and military world, that's why doctors, nurses and soldiers worldwide all wear this type of filter in threating environments and have for decades.
Fine, I was just wondering if you happened to know of a study saying any mask actually prevents viral transmission. Because all the studies I can find say the opposite.
Here's one from 2013 (Gardner et al). It shows virus-containing droplets being stopped by N95 and P100 filters at their claimed efficiencies (e.g. only 0.03% got past the P100), even at high flow rates. Very impressive.
The mean penetrations of viable MS2 [virus-contraining test aerosol] through the N95 and P100 FFRs/cartridges were typically less than 2 and 0.03%, respectively, under all flow conditions. All N95 and P100 FFR and cartridge models assessed in this study, therefore, met or exceeded their respective efficiency ratings of 95 and 99.97% against the viable MS2 test aerosol, even under the very high flow conditions.
These NIOSH-approved FFRs and particulate respirators equipped with these cartridges can be anticipated to achieve expected levels of protection (consistent with their assigned protection factor) against airborne viral agents, provided that they are properly selected, fitted, worn, and maintained.
There are others, as I said, plus lots of "softer" studies that are basically strong hints but less definitive. Together all those "data points" (hard and soft) collectively paint a pretty strong picture.
Can you cite any study confirming that that mask, or any other, actually blocks virus transmission? Thx
Just Google it, there's tons of stuff, it's standard knowledge in the medical and military world, that's why doctors, nurses and soldiers worldwide all wear this type of filter in threating environments and have for decades.
Fine, I was just wondering if you happened to know of a study saying any mask actually prevents viral transmission. Because all the studies I can find say the opposite.
https://swprs.org/face-masks-evidence/
https://www.sott.net/article/434796-The-Science-is-Conclusive-Masks-and-Respirators-do-NOT-Prevent-Transmission-of-Viruses
Etc.
Here's one from 2013 (Gardner et al). It shows virus-containing droplets being stopped by N95 and P100 filters at their claimed efficiencies (e.g. only 0.03% got past the P100), even at high flow rates. Very impressive.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7196694/
There are others, as I said, plus lots of "softer" studies that are basically strong hints but less definitive. Together all those "data points" (hard and soft) collectively paint a pretty strong picture.
Thank you. Are the N100 masks (like N95) intended for use in a contaminated environment?