noxious smell in lab

Hey everyone,
For those late-night fabbers, there is a very bad smell in the lab that is quite strong by and around lampoly and that hall way. The smell is very strong by lampoly, and can even be smelled out into litho. It has been described as burned electronics, or very similar to the inside of MRC after running freon.
It has started to dissipate a bit, but still smells awful.
Happy processing,
Max