- Reaction score
- # of dives
- 500 - 999
When a sick person wears a mask and coughs or sneezes the vapor still gets out, it just slows it down and makes it hover around their head, so not as bad as if there was nothing slowing it down.What am I supposed to infer? They seem clear enough. The masks on an infected person help to mitigate speading the virus. Maybe what is missing is that the coughing and sneezing produces larger particles, that are indeed trapped by the mask. From the CDC:
Influenza Modes of Transmission
Traditionally, influenza viruses have been thought to spread from person to person primarily through large-particle respiratory droplet transmission (e.g., when an infected person coughs or sneezes near a susceptible person). Transmission via large-particle droplets requires close contact between source and recipient persons, because droplets generally travel only short distances (approximately 6 feet or less) through the air. Indirect contact transmission via hand transfer of influenza virus from virus-contaminated surfaces or objects to mucosal surfaces of the face (e.g., nose, mouth) may also occur. Airborne transmission via small particle aerosols in the vicinity of the infectious individual may also occur; however, the relative contribution of the different modes of influenza transmission is unclear. Airborne transmission over longer distances, such as from one patient room to another has not been documented and is thought not to occur. All respiratory secretions and bodily fluids, including diarrheal stools, of patients with influenza are considered to be potentially infectious; however, the risk may vary by strain. Detection of influenza virus in blood or stool in influenza infected patients is very uncommon.
Those N95 masks are for large particulates like bondo and sanding dusts created in body shops and industry. There is also one made by 3M that is intended for welding smoke. There is also one in a similar style that has a carbon liner in the material that is intended for nuisance vapors. None of them will be fine enough to stop viruses.
And, I might add that If a person has any facial hair that gets in the way of a perimeter seal they are useless for everything.