How long will it smell?

lol dont even have to have a fan to blow out window... shit i hotbox my car very often and it don't smell ike anything.

if you have two windows open fine,keep the door to the room closed and point the fan out in one of them... You need intake air as well so if there is only one window in the room,,, you need to open the door to that room so you can get intake air from the house,,, ie: other window open in another room...

I smoked doobs in rehab with this method,a counselor walked in 15 minute after a doob and did not notice,the counselor was a seasoned ex druggie...