Removing the filter and venting outdoors or using a Bentobox inside the chamber is a much better option.
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I completely agree. I’m lucky to have a window right behind my machine, but it’s frustrating that a feature I factored into my purchase decision is practically useless. Not to mention them trying to rebrand a design flaw to make it seem intentional.
What did anyone use for making the hose connector on the window seal by SXvFury. The filler strips look good, but I need to get a connector also.
Well now I feel a lot better about using an extra inline fan to do external venting.
I’ve obviously done this, but I’m not sure which part you mean. The connector part itself is part of his design.
If you mean to hold the tube on (it seems like maybe he printed some kind of plastic part or something), I used the standard duct clamps that are used for woodworking dust collection setups.
Recommend getting ones with thumb screws - using a screwdriver or a drill to tighten those screws is possible but MAN is that a pain when you’re in a tight spot.
Still recommend the fan linked here too if you want a better external exhaust. In fact based on what jfrai007 found above, this detail seems crucial.
I completely agree about the duct clamps! Those things can be such a pain.
But if you plan on moving your vent hose a lot, I would not recommend the metallic ones. The more they move around, the more tiny holes will start forming all over the hose. I use a silicon (I think) covered vent hose, so it won’t develop those tiny holes from being moved around.
If your setup is fixed and doesn’t move, it is not as much a problem, but if you have to move it around (like I do), you will want a better hose.
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I’ve been using the metal “dryer vent” tubes which I believe are standard 4" in the US. Didn’t want to go with the plastic that wood shops use because of (maybe) heat related issues. But I also don’t move things much.
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I don’t use these for my 3D print (yet). I currently use them for laser cutter. It is exhausting smoke from the laser burning the material and it is quite pungent if the fumes escape, making it quite obvious.
I assume the fumes from ABS/ASA are similarly noticeable? If you get enough tiny holes in the vent hose you will notice. So if you don’t smell any of the fumes, you should be fine.
People say it’s bad, but I’ve never tested it. 
I think it’ll depend on what part of the tube has holes. If it’s on the intake side of the fan, the negative pressure in should keep anything from escaping. If it’s on the positive side (exhaust end)… yeah, bad.
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