Hubba
Elite Member
- Feb 6, 2010
- 2,000
- 1,089
That is not science. I've heard the "theories" of ballistics, particle size, etc. I can even show you a recent study which was forcing different particle sizes through all different types of materials to see which would be the best to make a mask. Nothing of cloth like material blocks much below 3 micron. You must understand this is purely particle size with known pressure. This does not take into account particle composition and charge. There's even a study that incorporates certified N95 masks. If worn perfectly (no gaps at all) they are 95%+ efficient at blocking particle size of 0.3 micron (SARS is around 0.1), The way people generally wear them (medical professionals) they are only a little over 50% efficient (due to gaps.) NONE of that has anything to do with actually preventing the spread of an airborne virus. You can look back through my previous posts. I linked to one article that reference a ton of peer reviewed articles that show no statistically significant evidence that masks prevent the spread of influenza. It is generally accepted that influenza spreads in droplets. They claim this novel virus is actually airborne. Obviously if someone is coughing or sneezing they should wear a mask to prevent splattering major clusters of viral particles onto people and surfaces. Healthy people should not wear masks.https://www.nature.com/articles/d41586-020-02801-8
A mask does reduce the transmission rate of the virus, its just not 100%.
