Quote Originally Posted by mwmkravchenko View Post
We took out a 50 plus year old fume hood made from Birch plywood and installed a sheetmetal one that my guess in that lab would not last more than a few years.
At one of our satellite sites operated by our National Oceanographic outfit they installed a full suite of Stainless Steel fume cupboards in their new building, 6 months in they were ripping them and the extract ducting out to replace it with fibreglass fume cupboards and plastic (Teflon) lined extract ducts, HF and other acid mixtures had turned them red and holey...