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OLED, or organic LED, improves upon the display capabilities of smartphones while also decreasing the manufacturing cost. OLED screens have greater contrast and a better quality. OLED television screens can curve rather than remain flat, for a television experience that mimics the way your eyes process the world.

To make OLED screens, organic substances are transferred onto a screen using a carrier gas (typically nitrogen, which is low cost and widely available). A nitrogen generator can generate nitrogen on-demand to increase plant productivity, keep costs low, and decrease the time it takes to make an OLED screen. Nitrogen also keeps oxygen out of the OLED screen, since oxygen can decrease the screen’s performance.

Having nitrogen generators on hand is not without risk, however. Nitrogen depletes oxygen — which is why it’s so useful in OLED manufacturing — so if nitrogen leaked from the generator, ambient oxygen levels would tumble. A worst case scenario here is death via asphyxiation. Since nitrogen cannot be seen or smelled, plants must use something like an oxygen monitor to track oxygen levels. Oxygen monitors sound an alarm if oxygen falls to the point where safety is a concern, providing sufficient notification for staff to exit before experiencing health problems.