I recently bought an air compressor. As I was dusting of my MacBook. A sort of white film came out, but it disappear quickly without leaving any residue. I still got afraid. Especially because I did it while it was on. Thank god nothing weird happened. I turned it off the whole night and turned it on to charge in the morning. Si far it looks fine but it was a scare. Has anyone had this issue while using air compressed cans