It literally is a box full of mosquitoes lol.

Researchers do stick their hands in, and they absolutely breathe because the enclosures can be used to selectively control the air exchange and you sometimes need to elicit a response.

You're correct that mosquitoes find us in big part by detecting the co2 we expel during respiration.

The bastards, the only way to avoid them is when you stop breathing.

I was thinking that you have to hold very still for macrophotography like that to come out so clear.