Need Cleaning Help for CSL Elite

Hello I'm a concerned CSL Elite owner, well concerned isn't really the way to put it as I know what I need to do. My current wheel is starting to have some drift issues when running on higher force feedback levels. (Not really high levels of FFB of course) At the moment I have to use the wheel with very little FFB so that the wheel doesn't come off center as much.

What I really am wondering is what kind of compressed air should I get. I read somewhere that it can't be higher than 70 psi and when I go looking for anything of that sort I find no info on a product like canned air that does or doesn't go over that. I don't really have the money or use for electrical ones that you can get and could really use just a normal can of compressed air. Does anyone have any recommendations for a product that they use so I wont unintentionally damage the code wheel while trying to clean it.