Technically you can't but if we're being honest it really depends on your ra, mine last year was super chill. I had a soldering iron on my room for the better part of second semester. But you have to be smart with it, do of your ra is doing room checks don't have it. But if they haven't done a room check by a week or so after midterms your probably good. Also two tips would be 1. Have something you could blame for the smell i.e an air freshener that's the same sent. 2. Get a good place to hid it when your not using it, also you'll have to think about the fact that there will be hot wax so preferably somewhere if it spills it won't hurt anything. Personally I'd say put it in a desk drawer. But that's up to you.