Dear passenger! We carefully read your valuable opinion!
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Dear manufacturers of subway cars, when you test the air conditioners (and you clearly test the cars on pigs because there are always livestock carriages) - put on pigs and put a thermometer in the butt to finally understand that your condoms don't work and if you wear something warmer than winds (in the winter, for example, unexpectedly, right?) Then the testers will float on top of it, and the windows will not be opened.

Happy passenger of the Moscow subway, Tagansko-Krasno-Presnensk line
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We are pleased to inform you that we have listened to you and resolved the problem!
We no longer install air conditioners in subway cars. Thanks for your recall!