…Atmosphere Down to 10 PPM Oxygen levels with 50% reduction in N2 consumption. 1936 MKV Vacuum Reflow Oven 1808MK5-VR Voidless Vacuum Reflow Ovens … Convection zones + 3 IR zones + 3 Cool Zones, Total Length 590cm 1936MK5-VR Vacuum Voidless Oven 8 Convection Zones + 3 IR Zones …