It was told by the writer Andrei Rubanov, who sat in the second half of the 90s.

“I remember a case.
We are sitting somehow in the investigative prison “Matrossia Silence”. Summer is very hot. There are about 150 people in 32 places. 15 degrees, that is, if on the street +30, then in the chamber +45, and absolute humidity, from body vapors and breathing. And in addition, everyone smokes, although from the moisture cigarettes hardly burn. They are all cowards. The elderly, who had a weak heart, fainted, their hands and legs were carried out to the corridor, with the permission of the guards, and they were placed there on the cool coffee floor to shake. The ventilation did not work, but it was allowed to accept fans from relatives. We turned down, who had money in the families, pulled four large office floor fans into the chamber. It turned on and it got worse. But there were engineers among the arrested, and even one aircraft manufacturer with a MAI diploma, they said, and you are doing the wrong thing. Do not direct the flow of air into your mouth. On the contrary, all the equipment must be raised on the windows, and installed strictly on the outlet, so that bad air can be driven out, and good, fresh - will flood itself. Because it kills not heat, but moisture and lack of oxygen. So we did. That summer, the body guards, when they came to us, respectfully said that we had the coolest camera on our floor.
Since then, I have taken more attention to engineers.
Don’t get sick, take care of yourself.”