A breathalyzer test is a diagnostic device that measures how much alcohol is in the air a person breathes out. It can be used to estimate blood alcohol content (BAC), or how much alcohol is in the ...

Alcohol breath tests, commonly called breathalyzers, measure blood alcohol content (BAC). The more intoxicated a person is, the higher their BAC. This test is often used by law enforcement to ...

When you drink alcohol, it goes into your stomach and small intestine. It gets absorbed into your blood, which carries it through your body and into your brain and lungs. You exhale it when you ...