How Long Can Breathalyzer Detect Alcohol?

The breathalyzer is a popular device used for alcohol tests conducted by police officers. It prevents drunk driving and lowers the number of traffic accidents.

Not everyone has taken an alcohol test. You may be confused about how the breathalyzer works and wonder: “how long can a breathalyzer detect alcohol”.

There isn’t a fixed time that a breathalyzer can detect alcohol in your blood. The time will vary based on the amount and type of liquor you consumed and your physical conditions.

This post will shed more light on this topic and give you in-depth explanations.

An Overview Of Breathalyzer Alcohol Test

In the alcohol tests, the device will measure the proportion of ethanol in your bloodstream or the blood alcohol concentration (BAC). Unlike the blood tests, a breathalyzer only requires you to breathe in the device. 

Depending on the amount of liquor you consumed and many other factors, the device will give different results, ranging from 0.00% (completely sober) to 0.40% (drunk).

The more liquor you drink, the more impaired your driving ability is. The BAC levels help reflect how liquor affects your body and tell if you can safely drive on the streets. 

The permitted threshold of BAC is under 0.08%. Exceeding this limit is violating the laws, and you will be faced with heavy charges. 

How Long Can A Breathalyzer Detect Alcohol In Your Stream?

How long a breathalyzer can detect your BAC will vary based on how much liquor you consume and some other factors. On average, the BAC will lower by 0.015% every hour after drinking. 

For example, if you have taken four or five drinks and reach a BAC level of 0.08%, you will become sober after 5 to 6 hours (0.00%). 

However, as the BAC level will decrease gradually over time, you can take 4 – 5 drinks and pass the test after 2 – 3 hours. The more liquor you drink, the longer you have to wait for the BAC to get below 0.08%.

When the ethanol enters your body, it will mostly be absorbed through the intestine. Therefore if you have eaten before drinking, the liquor will enter your bloodstream slower, taking more time for the BAC to go down. 

Measuring BAC Level

Why Shouldn’t You Drive After Drinking? 

Liquor will affect your muscle, brain, and cognitive ability. Under the effects of liquor, it is harder to concentrate and react to urgent situations.

Drunk drivers will have impaired vision and driving ability as well as decreased focus and muscle function. It increases the risk of serious traffic accidents due to loss of control. 

Therefore driving after drinking liquor is a crime, threatening the life of you and other people on the streets. 

Car Accident

Final Thoughts 

2045Tech hopes that you are satisfied with the answer provided in this post. A responsible driver will always say no to drinking wine before joining the streets.

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