a stuffy room meaning in English

一间空气不流通的房间

Not long after starting the classes i was able to move from a stuffy room that i shared with a roommate to a condominium with high ceilings and two bedrooms
（开学后不久,我便从和室友共住的闷热宿舍搬出来,住进了一个高顶双卧的公寓套间。）
Like a breath of fresh country air rushing into a stuffy room through an open window was the youth , energy , and confidence of success that the cavalcade of brilliant young people brought with them into kutuzovs cheerless staff
这些疾驰而至的出色的青年，使那闷闷不乐的库图佐夫的司令部焕发出青春活力和对胜利的自信，正如一股田野的清新空气忽然被吹进令人窒闷的房间一样。