closed System for working with volatile radioactive substances. Purchased 1993.
http://www.brincubator.com/hotboxsystem.htm
"The Hot Box System eliminates the hazard of contamination of personnel and equipment by radioactive gases. It isolates labeling experiments and allows you to regain full use of your CO2 incubator. Conduct experiments safely in the Hot Box System. "
E.g. S-35 metabolic labeling