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.
Best Black Garden Hose Holder wall mount-Durable , very powerful hanger it can hold 100ft heavy hose -keep your backyard neat and clean. Currently unavailable. We don't know when or if this item will be back in stock.
Additional Details Perfect for rental accommodation this toothbrush holder form Compactor Bath's Bestlock Magic range requires no drilling and can be easily repositioned thanks to it's specially designed adhesive patch that leaves no marks on the wall. Cooke & Lewis Lora Black Toothbrush Holder Product code. 255298_BQ.