> What a tool was being used for 2 months ago isn't relevant
It is very relevant. These face shields wouldn't protect anyone from airborne/aerosol pathogens or viruses. They have a very specific purpose and that isn't one of them.
If you're talking about adapting construction grade shields (like used for painting, etc) for medical use -- sure. But you aren't going to use a face shield as a replacement for a face mask, which is what it seems like you're arguing for.
If you're saying that you should wear a face shield in public to protect yourself from aerosolized virus -- that's not the point of a face shield. The particles can travel around the sides of the mask too easily. If you want to protect from small, airborne particles, you need a mask.
It is very relevant. These face shields wouldn't protect anyone from airborne/aerosol pathogens or viruses. They have a very specific purpose and that isn't one of them.
If you're talking about adapting construction grade shields (like used for painting, etc) for medical use -- sure. But you aren't going to use a face shield as a replacement for a face mask, which is what it seems like you're arguing for.
If you're saying that you should wear a face shield in public to protect yourself from aerosolized virus -- that's not the point of a face shield. The particles can travel around the sides of the mask too easily. If you want to protect from small, airborne particles, you need a mask.