how long does weed smoke smell?

[FreshRollyG]

I smoke up in my room and all I do it turn my ceiling fan on,and blowout of my window and when i'm finished just spray a few colognes in my room, especially near the door. The smells is completely gone in 3 hours or so

[reality0]

yea i smoke in my room all the time with my parents right across the hall... dont notice a thing and its gone by morning