LMAO omg the things people will do to achieve a better high. Dude you do not need to be exhaling into a bag and then inhaling it back. You aren't getting higher off of weed you are getting higher from like they said before oxygen deprivation. If you really want to get fucked up just buy some grade a weed and a nice bong. And learn how to use it right. ROFL @ the bag thingie. As for your inhaler being used as a pipe and the filtering making the weed stronger...no. It might filter out some of the other chemicals in the pot and make it a little more clean for you. Less harmful to the lungs and stuff but it won't make the weed get you any "higher".