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.
Item #: HWR-208 -. Availability: In Stock. If the pictures you are hanging are not too heavy or large, Hardwall Plastic Picture Hooks are a great solution for hard-surface walls. The surface of the wall must be smooth, so that the back surface of the hook is in full contact with the wall.Maximum picture weight is 20 lbs. for the large hook.Installation of Hardwall Plastic Hooks is quick and easy and requires only a hammer.tem #: HWR-208 -. Availability: In Stock. If the pictures you are hanging are not too heavy or large, Hardwall Plastic Picture Hooks are a great solution for hard-surface walls. The surface of the wall must be smooth, so that the back surface of the hook is in full contact with the wall.