I used to work in HVAC, and used These all the time, ( Backdraft Shutter Damper Connector Duct) and they are wonderful, but I recently discovered that the Glowforge’s smoke, has a Sticky quality to it, and GLUES IT CLOSED… so you need to CLEAN THEM once a month, or use some other method to keep humidity / water out of your GF.
they are a lot easier to deal with since its ‘automatic’ but you also gotta keep em clean.
and the only caveat to those is make sure it’s not one with a screen inside of it. i wasn’t thinking when i installed the one i bought that had a screen at first and it clogged up in a week or two. just pulled it out and now it works fine.
I have been using this for a long time now and never have any issues or have to deal with disconnecting when now in use (although I often do disconnect because it’s good practice). Those have just great for if I forget to disconnect