3 EX-15 Oxygen Concentrators on a Nortel Red Max (Lampworking Glassblowing)

I use 3 EX-15 Oxygen Concentrators instead of liquid or tanked oxygen. This demonstration shows how a Nortel Red Max handles each machine one at a time starting with one on, then two on, then three on. The EX-15's put out 8 LPM and 15psi, and Propane is set to 5psi from its own separate tank.