I have purchased a pink chi hair dryer and the box said that it contained lead. Is that something that is not good to use if it contains lead? I seen on the other red and black ones they don't contain lead. Recently when I've been using my hair dryer it smells like burnt hair, anyone else have this problem? I was thinking about getting a hair straightener from Chi, but i'm not so sure now. I've looked into Solia brand, not sure if they are any good. I also seen that Chi only guarantees their products for 1 year, and someone said a lifetime, not sure which one? Thanks for your help!