"I don’t think I’ve ever sent pictures of my build.  This is an enclosure in my basement for 3D printers and a laser cutters/etchers.  It’s not perfectly air tight, but seems to be good enough for now.  There is a carbon filter and fan that exhausts the air outside.  There are LED rope lights so I can see what I’m doing, plus a few cameras to check on long running prints. " - Brian