Let's say I have a room in my house with no windows, no flow of air in or out, isolated from the rest of the house, which makes it impossible to sit there.
How do I describe it? Can I uses the following sentence?
Because of no ventilation it(the room) is always very congested, so it is impossible for anyone to live there.
Is the use of congested correct in this context, or should I use some other word?