So I haven't been very good about cleaning my CPU with the compressed air cans which is what I was told to do when I first built it. There are 2 options i can get off Amazon though, 1 is a high tech vacuum looking thing that has different mini attachments that work on different components of your computer, and the other is just your typical compressed air can you use on your keyboard to blow dust out from under the keys. Do I spring for the vacuum thing or do I just get a regular can of air? Also should I use it on everything including the fans or just worry about my CPU which I hear gets the most build up.