There is air condition. But it not works well, it just makes little sound, sometimes beep and no matter what temperature you put on, it always blow warm air, same as it already is in the room. So it does nothing.
Host isnt responding to your messages, so he wont help you. You can open a window but the street is very loud, mainly because the room is just above the main road. If you are that type of human being who does not like to falling asleep in the silence, you will love this place. But be prepared for strange smell coming from the walls of this unique apartment. Reaching out and finding new place for a living in your nose. Smell, that reminds you old smoky Viennas bar. Smell of cigarettes.