next year im going to college, and I'm trying to prepare for the worst scenario; an extremely loud roommate. If i want to study/sleep properly, I will have to put on some earplugs. I've done some research, and people are saying foam polyurethane earplugs are the most effective. Now, in case i get paired with a loud room mate, I may be using these earplugs everyday for several months at a time. DO you guys see any potential health hazards from this?