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.
You'd have to ask the manufacturers, but I've seen numerous doctors wearing P100/N100 cartridges on respirators while working in their COVID wards, so even if the manufacturer mainly markets them for industrial use, they're still being used in the field for medical purposes.
And that makes perfect sense because, as far as I know, the only difference between them is filtration level (95% versus 99.97%). But call and verify!
Many companies make them, but I've found the 3M customer service people are nice to talk to on the phone, and very helpful.
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?
You'd have to ask the manufacturers, but I've seen numerous doctors wearing P100/N100 cartridges on respirators while working in their COVID wards, so even if the manufacturer mainly markets them for industrial use, they're still being used in the field for medical purposes.
And that makes perfect sense because, as far as I know, the only difference between them is filtration level (95% versus 99.97%). But call and verify!
Many companies make them, but I've found the 3M customer service people are nice to talk to on the phone, and very helpful.