First I need to thank everyone for letting me blow up the forum with all my questions. I tend to ask a lot I, learn better that way. I apologize if I come off as a total newbie. That being said, Ive recently purchased a new in box mask SGE 400/3. and a couple of MSA CBRN canisters. Does it matter if I unwrap the canisters? I feel the mask needs to be equipped to be any good. last thing I want to be doing when the detergent plant down the road releases a chlorine cloud is trying to screw on filters!