3 ms·
HEPA is efficient, but expensive to maintain. I stumbled upon this interesting sounding study [1] from 2013, but realized that thee Corona Virus is between 50 -
by sdoering 6y ago
HEPA is efficient, but expensive to maintain. I stumbled upon this interesting sounding study [1] from 2013, but realized that thee Corona Virus is between 50 - 200 nm and the effective filter range is between 200 - 600 nm.
[1]: https://pubmed.ncbi.nlm.nih.gov/23263945/ https://pubmed.ncbi.nlm.nih.gov/23263945/