Getting a bit dusty - Machine Check Regs again

Last year I had all sorts of crash reboots happening and my local PC tech came to find that the vents for my processor box were covered in dust.

He cleaned them out and the PC worked like new.

Starting to get the crash reboot again when the PC warms up while playing games and the box is starting to look a little dusty.

Instead of paying the tech to clean it out again I was just going to take the vacuum hose extension to it.

Would this be a no no or do you think it can be pulled off without harming anything?

Nevermind, this har says that the type of vacuum I was getting ready to use would create a nasty static electricity problem and to instead use a hand job.

https://www.computerhope.com/cleaning.htm