next semester i'm going to be moving into an apartment with some friends who smoke pretty regularly, sometimes inside. while my room will be just me and i won't be smoking in there, i've seen what cigarette smoke can do to the inside of a case (yeah, and i know what they do to your lungs too) and was just wondering if there's any specific material that's best at blocking smoke from getting inside. i use dryer sheet fan filters right now but i was thinking maybe some of that sound dampening foam might work without restricting too much airflow. any tips aside from "don't move in?"