Room problem?

Question:Okay i have a room that is not that big but medium size the problem is no matter what i do it doesn't get cool.. i have tried turning the fan on and closing the windows and turning the a/c on for hours it still doesn't what can be the problem.. the air does come in the room but still it doesn't get cool

Answers:
it sounds like your room is not insulated,and also your ac is not big enough to handle the temperature,also if you have central ac your filter should be checked and your air ducts cleaned, and checked.