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E ND | You can't take some of these statistical details as simple math when they break it down to microns. COVID-19 is not airborne from particle size standpoint.
1. The virus itself is very small but it travels on aerosolized droplets from a sneeze or cough. These droplets are of a size that would be stopped by any number of different materials. Is a bandana as good as an N95? No way but it's stopping something.
- I don't think dry filters work in an absolute sense when filtering wet particles. There is an attraction and adherence factor when droplets pass through a filter media that would provide additional likelyhood that a droplet will be caught by and bond to a filter. Meaning the chances of a droplet of a certain size making it through a filter media even with larger "gap" is not actually that likely. Droplets are large enough to fall to the ground, other than a direct sneeze to the face it's not just floating in the air for very long.
2. Any virus needs more than one virus cell? to make us sick, depending on our immune system. To be exposed to a small amount doesn't mean you're going to become sick. Many healthcare professionals are working with these patients every day and not becoming sick. They're wearing high-quality PPE obviously but if the "virus will waft into your mouth from your clothes" idea was sound I'd think with constant exposure to COVID patients day in and day out and multiple PPE changes per day/hour that your theory would make them all sick.
3. Many experts have said that any mask may HELP stop the virus, but more importantly it keeps people from touching their face. Your mask might not be able to stop the virus itself in the air but it will help limit the ways that you can self-infect and several interviews with doctors have stated as much. I've seen a couple different studies referenced but humans touch their face something like 700 times per day unconsciously. The masks help eliminate some of those chances while we're out in public.
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Worthless masks response
