"Yes alcohol breath testers work. You breath into a breath tester and it reads the alcohol content of your breath. Cops can pull over people and test them to see if they are drunk, and can arrest you if you are."
A blood test is the only way to measure blood alcohol concentration accurately. Alcohol breath testers (Breathylizer, etc.) actually only estimate the blood alcohol concentration.
Alcohol breath testers are available at both online and offline retailers. For an online order, one can use Amazon or Ebay. Many bars and restaurants have alcohol breath testers that they allow patrons to use.
A breath test analyzes the breath. Usually the breath is analyzed for the presence of alcohol. I think there are breath testers that analyze for other drugs such as cannabis.
Amazon sells the AlcoHawk Precision Digital Alcohol Breath Tester. It is able to screen for the presence of alcohol quickly, and is considered to be very accurate. You can find home breathalyzer tests online at www.breathalyzer.net. These breath tests are made for personal home use as well as professional.
The inaccuracies of alcohol breath testers (actually they're estimators) has been well documented. There are many different sources of error and they can be significantly large.
When you drink, you exhale a certain amount of the alcohol in your breath. This is how blood alcohol content (BAC) is measured by breathalyzers. You blow into the machine, if analyzes how much alcohol is in your breath, performs a mathematical equation, and determines how much alcohol is in your bloodstream.
There are many different types from key chains to portable breath alcohol tester, ranging in price from a little under $20 to over $100. Also, please remember that any alcohol breath tester you buy may not be accurate, NEVER drink and drive.
Breath alcohol level refers to the amount of alcohol vapor in the breath. Alcohol is excreted into the lungs from the blood in a fixed proportion to the amount in the blood. Therefore, measuring breath alcohol gives an indirect, but accurate, measurement of the amount of alcohol in the blood, and the degree of impairment to brain function.
The odor of an alcoholic beverage on the breath will dissipate with time. It's also possible to cover the odor with breath mints, mouthwash, etc. However, doing so will not prevent the detection of the alcohol in an alcohol breath test.
Yes. There are many sources of error in alcohol breath testing machines.
None, unless they contain a lot of alcohol. Alcohol breath is caused by alcohol leaving the bloodstream via the lungs. It does not originate in the mouth.