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
The hydrogen breath test is the preferred method. It measures the amount of hydrogen in the air you breathe out. 1  You will be asked to breathe into a balloon-type container. 2  You will then drink a flavored liquid containing lactose. 3  Samples of your breath are taken at set times and the hydrogen level is checked.