Good point. Wash them.
The common surgical masks are the same way. Reusing them doesn't work either. But they can't be washed. They are disposable and need to be disposed of and a new one used. Only the rarest of respirators is intended for continual reuse.
I see a lot of people using face masks wrong. Maybe it's better than nothing, but often case not much. For one thing that nose thing should be conforming to the bridge of your nose. And a person huffing and puffing through a mask is probably worse off than another person breathing calmly.
I see a lot of glove issues too, where people touch things with their gloves on, then take their gloves off, then touch the same things again. It defeats the purpose. Mostly I see this with cell phones.