i didn’t want to duct air thru the wall or out a window.
And fumes do not only come from the printer- they also come from your cartridges and tanks- which should also not be exposed to temperature extremes, nor excess light.
So I went to a used office furniture store to buy a nice Steelcase cabinet and found this thing
what I liked about it was that its interior was dark with black adjustable shelves and it came with leveling feet. I paid $150 bucks for the cabinet.
Inside I set up the shelves to hold the printer with enough room to open the lid… and the spaced the lower shelves to be ideal for storing up to 6 tanks and as many cartridges as I please, properly oriented on their side with label showing.
at the upper left you can see I installed a short shelf near the top of the cabinet to hold a large activated charcoal filter- this type is sold online for pot growing operations and is both affordable at $30 and large enough to last for a year of continuous use.
the top of the filter is ducted to a fitting I printed to fit in a 4" hole I cut in the top of the cabinet.
And that is ducted to a 4" whisper quiet axial flow fan. This was the most expensive component at $170.
On the outflow port of the fan I installed another fixture I designed and printed to diffuse the outflowing air by directing it thru a another charcoal filter that can be purchased for $1 each or so and are made to fit home composters.
As designed the outflowing air has to pass once thru the center of the filter, and then again thru the rim of the filter.
I print with the doors closed- the fan pulls air from inside the cabinet thru the charcoal filter to return cleaned air to the room. The doors and side panels of the cabinet are NOT air tight… and it is thru these narrow gaps that room air is pulled into the cabinet from all sides, and washes thru the filter on its way out.
that is, the fan maintains a negative air pressure inside the cabinet.
With the doors closed, the cabinet is pitch black inside and so no extraneous UV leaks in. Even with the doors open, its hard to see inside because the black interior swallows so much light.
I leave the fan running 24hrs per day.- but it is designed for that.
This particular fan also has a Probe that is mounted inside the cabinet that tells me what the temperature is inside the cabinet.
I find this enables me to live in the room with the printer and all the room air eventually is cycled thru the filter every 24 hours- so I have noticed a significant reduction in ambient dust.
I originally rigged this with the fan INSIDE the cabinet… mounted directly on top of the filter- but the odd thing was that the Fan’s motor created some kind of interference with the Form2’s accelerometers…so the the Leveling bubble on the display would wiggle back and forth and be unable to read a steady level.
Moving the fan outside the cabinet solved the problem.