Marijuana Smell

I have always used a very simple trick that always seems to be effective. Take a toilet paper roll, tie a dryer sheet over one end using a rubber band, stuff a few more dryer sheets into the closed and and BAM! When your smoking pot and it's time to exhale, just exhale into the open end of your toilet paper roll devise. Other tricks include stuffing a towel under your closed door, fill the room with a ridiculous amount of air freshener or just smoke out of a vaporizer.