Some time ago I filmed a how to thoroughly clean your double action airbrush tutorial as I saw so many comments asking how and thought i'd share my method which has worked well for me for the last 10 or so years leaving me a spotlessly clean brush in 10 min or less.
At the time I was restricted by poor lighting, audio and average image quality so I thought it time to revisit it with higher er def video, better er sound and amazing CGI and special effects!
(The CGI and special effects is not true though)
Hope it's useful to someone.
https://www.youtube.com/watch?v=tcSBK0l5Lbw&t=2s