Thank you for your insight!

With the added cooling, I can handle having over +40ºC as the coldest temperature inside and a +100ºC heatbed when printing ABS or PETG.

Added a photo of the carbon filter squeezed behind a computer's dust protection. Added a photo of the extra cooled extruder.

First thing is making sure that you have enough airflow. I use a big hole at the bottom sucking air with two 12V fans and a single coal filter. Air comes in through a tunnel in the door filled with stone wool. Then I have a all-metal upgrades on the extruder, added cooling paste under the heatsink and added lots of passive heatsinks on the extruder engine in case of power loss or fan failure. I never use the heatbed above 100 degrees Celcius in the enclosure, because I don't want to damage the power cable and blow a fuse.

I had this same idea this past week as I had to replace my dishwasher and am having temp errors occasionally on my hot end. How has this worked out for you? do you have any further pictures?