Hey guys, I finally have one last piece to complete my goalie gear left to purchase, the mask. I am looking at used masks because I figure I can spend as much as a new mask, but get a much better, safer model (i.e. I can buy an Olie MA9900 new from store, or a used CCM GF6 for the same price...). How do you go about cleaning masks? I guess the interior foam and sweatband would be the only 'dirty' part, so would it just be best to replace them after purchase? What should I look out for when purchasing a used mask?