Fluffy Queenie and I both dressed up in full black latex during the Sauerland weekend earlier this year.
We wore our matching StudiGum gas mask hoods and got connected to each other, so we were both breathing through the same tube. We had to share the air.
It even got more restrictive when I added the rebreather bag and we got even less air to share.
My glasses are tinted, like very dark sunglasses.
So I can still see a little bit.
But Queenie's hood has completely dark glasses, so she can't see anything of what I'm doing.