yea you can take a toilet paper roll, bend up one end of it, and stuff a couple of dryer sheets into the tube. then exhale through the tube. it really works i've smoked a bowl in a small room and the other people in the room couldn't even smell it. they were like on the other side of the room and couldn't see me because of a desk and drawer thing, but i was impressed at the effectiveness. by the end of the bowl they could smell it a little, but it wasn't noticeable. burn some incense or just get a fan blowing, just moving the air around in the room will help reduce the smell.