《Sanitizing Masks With Alcohol Degrades Performance》有13条评论
How about those nano-fiber masks made in Korea (KF94)? They claim that it can be sanitized with alcohol. Do you have a research about these masks effectiveness?
Great question Myk. the KF94 masks are actually very similar to N95 masks. We have an article explaining the difference between N95 and KF94 masks here. In short, they’re so similar that the tests done here will likely apply for KF94 masks also. We wouldn’t recommend you use alcohol to sanitize KF94 masks.
Dear Smartairfilters, it would be great if you could address the new scientific papers https://doi.org/10.1016/j.eng.2020.04.003 and https://doi.org/10.1016/j.eng.2020.05.016 which claim that it is possible to regenerate the static charge by drying the mask with a hair dryer. Also I would support the request by Doris and Mike that it would be helpful if you could test by sprying alcohol, possibly ethyl alcohol, and not dipping the mask in alcohol, and then let the alcohol evaporate, hoping that in this way it might leave the charge intact.
It would be a great help to everyone if you test spraying a disposable mask with (a) alcohol (Ethyl Alcohol and Isopropyl alcohol) and (b) with Hydrogen Peroxide.
Hi Martin, Liz here. We haven’t tested the alcohol effects on different types of masks. However, judging from what we’ve found so far, using alcohol rubbing wouldn’t be a good idea. There is a simple way to disinfect your mask, you can read this article here: https://smartairfilters.com/en/blog/disinfect-clean-n95-mask-virus-coronavirus/
I spray my lone N95 with a 99.9 % Ethel Alcohol spray – Hopefully it’s still effective to go grocery shopping – but it does remove doors- I also leave it in my truck where it receives the Light if the sun ~ which I believe assists in the decontamination process
We’re yet to run tests on how many times you can disinfect N95 masks with alcohol. However, the data in this article shows that disinfecting masks with alcohol can reduce their performance at capturing virus-sized particles around 5%. Based on this, you can decide when you think it’s safest to replace your mask!
How about those nano-fiber masks made in Korea (KF94)? They claim that it can be sanitized with alcohol. Do you have a research about these masks effectiveness?
Great question Myk. the KF94 masks are actually very similar to N95 masks. We have an article explaining the difference between N95 and KF94 masks here. In short, they’re so similar that the tests done here will likely apply for KF94 masks also. We wouldn’t recommend you use alcohol to sanitize KF94 masks.
Dear Smartairfilters, it would be great if you could address the new scientific papers https://doi.org/10.1016/j.eng.2020.04.003 and https://doi.org/10.1016/j.eng.2020.05.016 which claim that it is possible to regenerate the static charge by drying the mask with a hair dryer. Also I would support the request by Doris and Mike that it would be helpful if you could test by sprying alcohol, possibly ethyl alcohol, and not dipping the mask in alcohol, and then let the alcohol evaporate, hoping that in this way it might leave the charge intact.
What if you just spray the masks with alcohol instead of dunking them in. Might protect the mask and still work a bit better.
It would be a great help to everyone if you test spraying a disposable mask with (a) alcohol (Ethyl Alcohol and Isopropyl alcohol) and (b) with Hydrogen Peroxide.
How does this apply to the cheap variety store masks?
Hi Martin, Liz here. We haven’t tested the alcohol effects on different types of masks. However, judging from what we’ve found so far, using alcohol rubbing wouldn’t be a good idea. There is a simple way to disinfect your mask, you can read this article here: https://smartairfilters.com/en/blog/disinfect-clean-n95-mask-virus-coronavirus/
Just for a non med. user, could one just spray the n95 with alcohol inside and out and let them dry in hot air
Hi Doris, we didn’t try just spraying. But here is an article on how we recommend to disinfect your mask: https://smartairfilters.com/en/blog/disinfect-clean-n95-mask-virus-coronavirus/
I spray my lone N95 with a 99.9 % Ethel Alcohol spray – Hopefully it’s still effective to go grocery shopping – but it does remove doors- I also leave it in my truck where it receives the Light if the sun ~ which I believe assists in the decontamination process
Any comments would be appreciated
For how many time we must use N95 mask after disinfecting
We’re yet to run tests on how many times you can disinfect N95 masks with alcohol. However, the data in this article shows that disinfecting masks with alcohol can reduce their performance at capturing virus-sized particles around 5%. Based on this, you can decide when you think it’s safest to replace your mask!
Hello Thomas, another way they are talking about sanitizing used surgical / N95 mask is with peroxide vapor (https://news.umich.edu/u-m-engineers-work-to-disinfect-n95-masks-for-frontline-medical-personnel/). I believe CDC has also summarized on the method you can use to sanitize N95 mask (https://www.cdc.gov/coronavirus/2019-ncov/hcp/ppe-strategy/decontamination-reuse-respirators.html). This is still a great article nevertheless! Cheers!