3 ms·
Respirators are effective down to 300nm - aerosolized viruses are larger than this, around 1uM and larger.
by layla5alive 2y ago
Respirators are effective down to 300nm - aerosolized viruses are larger than this, around 1uM and larger.
- amluto 2y ago> Respirators are effective down to 300nm Not exactly. For most filter media, ~300nm is the “most penetrating particle size”. The mask is more effective below that.
- kukkeliskuu 2y agoMost people were using masks that did not prevent aerosolic viruses. Government mandates did not require use of respirators in most countries. Furthermore, research I was mentioning found that while the droplets are blocked by the mask, some of them end up in the clothes, suggesting some droplets fall of the mask. There were some videos that showed the effect. I am not saying that respirators do not work. I am saying that public policy was not backed by science and in some cases scientific papers were published that appeared to be politically motivated, which caused pulic to lose trust in both the public health policy organizations and to some extent also in science.