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.
The most popular type of can crusher without any doubt is a vertical or wall mounted can crusher. But there are some occasions that you cannot mount a crusher to a wall and need to install it to a horizontal surface such as table, or you donât want to install the crusher at all and use it as a portable can crusher. For this case you need to purchase one of tools called portable can crushers.