Earlier quoted context omitted.
> they dont work and health care workers need them to not get the virus Isn't that an obvious oxymoron?
I don't think so, but its definitely a contradiction in logic...
- context i.e. clinical setting vs on the street
- type of mask
- skill set of those using the equipment
For example, knives are very effective in surgery when they are:
- in a surgical theatre
- a scapel
- used by a surgeon
I don't suggest doing surgery in the street with a knife from your kitchen draw used by a teenager.