With the choir on this one. Just looking at how bad the mirror was I am amazed he could cut anything at all. I lost my first machine trying to do as he did with the fan exhaust. He did not use what was recommended, but in either way the fumes are a horror.
A much better system if you do not take it outside is here…
As for the rest that dusting brush on the end of a vacuum cleaner hose, can be amazing, and while he just uses the word “alcohol” real horror and good are both included in the word. I use regular branded hand sanitizer for things like the lid and being careful not to go over the camera stuff except to use a Zeiss wipe on the lens itself. There have been a lot of “deep cleanings” that suddenly the various problems that can occur around the connections to the camera suddenly happen.