1 Single breath of 100% O2. 2  During the following expiration, [N2] increases from 0% (pure dead space gas) to equilibrium (pure alveolar gas) (i.e. plateau). 3  Using [N2] vs. 4  graph, anatomical dead space is taken to be at the mid-point of the transition from conducting zone to gas exchange zone.
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Atlas Copco is renowned for designing and manufacturing some of the most durable oil-free screw. compressors. The ZR high-end rotary screw compressor comes out of this strong tradition. Ideal. for industries where high-quality oil-free air is key, the ZR offers the highest reliability and safety in.