Hey guys i recently built a computer for my high school senor project. i have several question about the fans, my last build computer i turn the side cover out, so there are a lot of dust in them. the new PC that i built have 3 fans on the side, should i make the air blow out of the case or suck in?? i think that i should blow out, because it prevent dust from coming in. but is that a good idea?? Much Help Thanks