The used masks from hospital personnel working in male and female medical wards had relatively higher bacterial contamination than the other wards.

This is just poor wording, but a ward for attack helicopters and similar "other" categories would be amusing.

you have not done your own research.

Is that even a credible excuse anymore? The mask and vax pushers have seen the same hundreds of articles and studies that we have. There's no legitimate reason anymore for anyone to claim masks block viruses. Those admiring the mask and fake-vax tyranny are knowingly complicit.