How to clean inside Amps and PreAmps


No Matter how clean I keep my room with air purifier running 24/7 except when I am listening, I still see some micro dust inside my Amplifier and Preamplifiers. How do I clean it ? I have also removed my top covers recently and keeping the equipment without covers. This might put more dust going forward.

Appreciate any suggestions that will keep my equipment clean.
veerapaneni
I remove the cover on my SS amp, and keep it off.
We all have to breathe (especially when pets and small children
are not present.) I concur to a draped cloth when not in use.

Occasionally I apply some anti-static spray
(3M, for example) to the end of a small
acid-free brush (electronic or art supply store).
Apply spray to brush when you are away from amp.
When the brush is moist but not dripping wet, dust
treated areas slowly with a light stroke. A small brush can get
into crevices neatly. Reapply spray as needed.

You will see and hear a substantial difference!
Re-treat as needed. Anti-static spray has other useful
applications... try wiping a sprayed microfiber cloth
on the outside of components, cables, shelves, and racks.
If you are going to clean the inside of your equipment, please unplug the items first. This is obvious, but needed to be said. Dust will collect, so occasional cleaning is really necessary, but do so safely. Non conductive brushes (still unplugged mind you), is a good idea.

enjoy
The best way to clean solid state equipment is to throw it into a lake and let it lay on the bottom for a couple of years. In the meantime, replace all of the equipment that now sits on the bottom of the lake with good quality vacuum tube equipment. All other responses above apply. :>)
Does dust harm the gear? If not, why bother dusting it out. I see the potential for damage or worse.

Like the old adage goes, "if it ain't broke, don't fix it."