Keeping your components Dust Free

I blow them off with an air gun periodically and use a lint free micro fiber cloth.

A couple times a year I'll open up the cases and blow them out and clean off the tubes.

I use feather duster and/or soft vacuum cleaner attachment for regular cleaning. Like the idea of make up brush for getting into nooks and crannies. Dust getting inside components can be problematic. Just the other day, going through one of my regular cleaning, re-situating, unplugging and re-plugging cables, noticed massive amounts of dust inside Synology NAS, anything with fan will intake massive amount of dust, these really need watching. I also periodically open up my equipment for a dust out with compressed air, feather the handle on blow gun, excess pressure could damage certain components.

If you feel anxious and the equipment is vented (holes or slots on the top of the case), just remove the top cover every few years and vacuum the dust out.  Make sure you unplug first!  If equipment isn't vented, don't worry about it; it'll be cleaned if you ever have to have it serviced.

I use a natural China bristle paint brush lightly sprayed with Pledge all surface dusting fluid to get in the nooks and crannies.  It is as soft as a make up brush but much larger.

Keeping dust covers over all my gear and speakers always, except when listening