Shares 1. Air pressure is the weight (or force) of the atmosphere at any particular point. Although you canât feel it or see it, air pressure plays an important part in weather, and can be demonstrated with some really fun experiments.
familiar with breathalyzers that require drivers to provide a deep-lung sample by blowing into a tube or other sensor. In contrast, the breath-based system being developed by Autoliv Development is designed to unobtrusively analyze alcohol in the driverâs breath. Drivers will simply be able to enter the vehicle and
pulmonary function test (PFT), a procedure for determining the capacity of the lungs to exchange oxygen and carbon dioxide efficiently. There are two general kinds of respiratory function tests. One measures ventilation, or the ability of the bellows action of the chest and lungs to move gas in and out of alveoli.