We haven’t tested the unit outside of the two supported configurations - venting through a 4" hose & the Glowforge Air FIlter - so I’m afraid I can’t say. You might consider tuning the booster so the airflow through the unit is unaffected, since increased air velocity might have side effects we haven’t thought of.
We’ve tested with some very old and grungy machines and seen no significant loss in cooling. It’s not a part you can reach for cleaning.
Hrmm. So you’re saying full bore 115 CPM (what the booster is rated for) maybe a bad idea. And I should start working on making it variable speed controlled?
But at some point it may be an issue thou? I plan on having this unit for several years. And it’s planned to get good use.