Today in our weekly Mumble session we talked about equipment, we had to add into our next clean room occasionally.. Here are the sites I am aware of - or still remember from a talk with Peter at the last congress. https://www.fabsurplus.com/sdi_catalog/home.do https://www.used-line.com/list-semiconductor-and-pcb/clean-room-equipment https://www.4semi.com/ Even Ebay.com has an own category for clean room equipment under Business & Industrial > CNC, Metalworking & Manufacturing > Semiconductor & PCB Manufacturing Equipment > Cleanroom Equipment Regards, Hagen. -- support LibreSilicon to get back into the Clean Room https://www.gofundme.com/f/libresilicon-cleanroom-rent