I go with the 9 to keep my OWN problems with breathing under control - especially this past summer of massive forest fires everywhere making Central Washington air far worse than Los Angeles ever gets.
The miners would probably be plenty fine with those "fiberglass" type washable filters, or even no filtering at all.
I see. So, the G9 is for u and not the miner lol
And that is good enough? How do u know u need to use the air can. When the temp is higher than normal?
Blowing it out every 6 to 12 months in my area would keep it clean enough to where i'd never see a noticeable temp increase from dust.
If temps were higher than normal, first thing i'd do is check for dust though.
So, u use no filter and only do blowing every few months ya
Correct