How Accurate are Breathalyzers?

Have you been charged with Driving Under the Influence (DUI) and had to take a breathalyzer test? If so, you may be wondering “how accurate are breathalyzers?” This article dives into the reasoning behind breathalyzer accuracy, offering insights into their functioning, factors affecting a breathalyzer result, and strategies for individuals striving to restore their driving privileges.

Breathalyzer device tests offer a lifeline for individuals charged with a DUI, presenting an opportunity to regain driving privileges. These tests are important for reinstating driving privileges for those who have been charged with DUI, usually through installing a portable breathalyzer, also known as an Interlock Device. Whether you’re looking for a new beginning or a professional participating in the process, this guide will provide you with important insights into the world of accurate breathalyzer device testing.

How Do Breathalyzers Work?

Car breathalyzers are critical in assisting individuals charged with a DUI to restore their driving privileges. Understanding how breathalyzers operate can be helpful in obtaining accurate results. These devices analyze your breath to determine your Breath Alcohol Content (BrAC). Through advanced technologies like fuel cells or infrared spectroscopy, breathalyzer devices provide precise readings that mirror the Blood Alcohol Content (BAC). In other words, they give an idea of how much alcohol is in someone’s blood without actually drawing their blood. So, how does a breathalyzer work?

Here are the steps for how this device works:

1. Blow into the mouthpiece, providing a breath sample
2. The breath sample passes the sensor module, where it detects alcohol molecules in your breath using light.
3. The sensor’s data is converted into a BAC value and then the Pass or Fail result is displayed on the device.

Factors That Influence Breathalyzer Accuracy

So, what besides alcohol can set off a breathalyzer? While alcohol is the primary substance detected by breathalyzers, there are several other factors and substances that can potentially trigger a false positive or affect the accuracy of the test results.

The Role of Proper Calibration and Maintenance

Breathalyzer accuracy hinges on calibration and upkeep. Regular checks ensure accurate readings, aiding individuals charged with a DUI in their quest to restore driving privileges. Breathalyzer calibration is the cornerstone of these devices, fine-tuning them for precision. Smart Start’s car breathalyzers are required to be calibrated every 30-90 days, depending on which state you are in.

Embracing Individual Variations

How long can a breathalyzer detect alcohol? It can detect up to 24 hours. However, it is important to remember that human bodies process alcohol differently, and this uniqueness extends to breathalyzer results. Factors such as metabolism and body composition can influence readings. Acknowledging these differences leads to a more accurate result.

Weather and Environmental Considerations

While breathalyzers are robust, external conditions can have a minor impact. Extreme temperatures or humidity might cause an inaccurate result. However, Smart Start’s breathalyzers are designed to work in any weather condition.

Understanding the Boundaries of Breathalyzer Tests

Breathalyzer technology is impressive, but it does have its limits. One big limitation is that the device can’t tell if alcohol came from drinks or from other sources. This can cause a positive breath test result when a person has used things like certain medications or mouthwash that contain alcohol.

Also, breathalyzer technology can’t say when alcohol was consumed. Someone might have had a drink recently, but the breathalyzer can’t show if it was a few minutes ago or a few hours ago. Additionally, different types of alcohol, like the kind in alcoholic drinks versus the kind in other products, all look the same to the breathalyzer. For those charged with a DUI, understanding these boundaries ensures realistic expectations.

What Should I Do If I Think My Breath Test Results Are Incorrect?

Smart Start is dedicated to ensuring quality and accuracy. Our devices go through rigorous testing to make sure they give you the correct result every time. If you’re a Smart Start client and think your Ignition Interlock Device may have sensed alcohol from something other than an alcoholic beverage, you can make a note on your account with us and contact your state authority. Remember, we recommend you rinse your mouth out with water before you take a test to make sure that you don’t have any food residue that could be picked up by the Interlock Device. If you have any questions or concerns, feel free to reach out to our expert Program Advisors in our Customer Care Center at (800) 831-3299. They will be able to help you get answers to any question you may have.

Paving the Way for Accurate Readings

For individuals charged with a DUI striving to regain driving privileges, accurate breathalyzer readings are crucial. It can be challenging to know how to pass a breathalyzer test if you’ve had bad experiences in the past. Adhering to best practices ensures reliable results:

1. Consider Timing: If you drink alcohol, make sure to wait until it has left your system before taking a test. This can be anywhere from 12-72 hours depending on things like how much alcohol you consumed and your body type.
2. Don’t Eat/Drink Things with Alcohol Before a Test: Refrain from using alcohol-containing substances for at least 15 minutes before the test. This reduces the risk of having any alcohol residue in your mouth that will be picked up in the test.
3. Training and Regular Checks: During your installation appointment, our expert technicians will train you on how to properly use the device. You will also come back regularly for your device calibration and can ask any questions during those appointments.

Empowering Those Charged with a DUI on the Path to Recovery

Ultimately, breathalyzers are effective tools for those charged with a DUI who want to reclaim their driving rights. These gadgets, when used and maintained properly, open the way for a fresh start and get you back on the road.

At Smart Start, we are dedicated to assisting those charged with a DUI in regaining their driving privileges through accurate breathalyzer technology and proper training. Need to install an Ignition Interlock? Our friendly Program Advisors are ready to get you started! Just call our Customer Care Center at (800) 831-3299 or fill out our quick online form below to get a call back later.

Sources:

1. Federal Trade Commission. (2008). Accuracy and Reliability of Breath Tests Conducted on Intoxilyzer 8000 Machines. https://www.ftc.gov/sites/default/files/documents/cases/2008/05/080514intoxilyzerfrn.pdf
2. Berger, A. (2002). How does it work?: Alcohol breath testing. https://doi.org/10.1136/bmj.325.7377.1403
3. National Highway Traffic Safety Administration. (2023). 2.3 Breath Test Devices. https://www.nhtsa.gov/book/countermeasures/deterrence/23-breath-test-devices