Breath analysis is done to check the blood alcohol content or the BAC in your blood. It is measured in %.This helps to determine if you are eligible to drive or not. The legal limit for BAC is .08% BAC. That said there are several ways to do that and one those ways to do the breath analysis is to use the dui breathalyzer. This Breathalyzer will help to make sure that you can do the breath analysis test at home itself.

Ultimately drinking and driving are solely your decisions and no on can change that. The breathalyzers available in the market are just some aids by which you use the test to determine when you had too much and when the effect of the alcohol has worn off. When you drive under the influence of alcohol it is known as the driving under influence or dui or dwi.

In all the states there is a strict sentence if you are caught driving under the influence of alcohol. Most law enforcement officers have the fuel cell breathalyzers to detect if you are within the legal limit or not. This limit is .08% BAC but you can be arrested for drunken driving even at .05%BAC.

The accuracy of the dui breathalyzer ahs been challenged many a times but these have become the most reliable instruments available. There is nothing which comes close to measuring the BAC or the blood alcohol content. There is a direct correlation between the alcohol in your breath and the alcohol in your blood. When you drink alcohol the alcohol does not digest instead it slowly gets mixed up with the blood. This alcohol is released via liver and kidneys or it can be down via the lungs when its gets dissipated.

Apart from the law enforcement other agencies which want better results go for dui breathalyzers which are not portable but are larger machines which have more accuracy.

As far as DUI is concerned if you are convicted of Dui using the breathalyzer you should make sure that you challenge this because the accuracy of the dui breathalyzer may be wrong

However if you are using this at home then the best thing to do is to make sure that enjoy the few glasses of beer and then measured the BAC and then take a responsible decision as far as the driving is concerned.

There are several dui breathalyzers available in the market so it is always better to pick one which is of a reputed brand and after you have read good reviews of that one. In case you go for an unknown brand the reliability of those will always be an issue that will mean that you just cannot drink and drive.

As far as the types are concerned there are standard law enforcement breathalyzers tests and that are fuel cell based. You can also have the keychain or the handheld portable breathalyzers. Then there are the car breathalyzers which will not allow the car to start of you have a BAC of above .08%

Also make sure that you avoid false positive breathalyzer tests.