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Understanding breath tests during DUI stops in Naples, Florida

On Behalf of | Jun 13, 2025 | DUI/DWI Defense

If law enforcement pulls you over in Naples, Florida, and suspects you’re driving under the influence, they will likely ask you to take a breath test. Understanding how this test works and its potential consequences can help you handle the situation better if you face a DUI or DWI charge.

What is a breath test?

A breath test measures your blood alcohol concentration (BAC) by analyzing the alcohol in the air you exhale. This test estimates your BAC and helps officers determine whether you exceed Florida’s legal limit of 0.08%. During a DUI stop, this test plays a key role in determining whether you’re impaired.

How does the breath test work?

To take the breath test, you’ll blow into a device that measures the alcohol in your breath. The machine calculates your BAC based on the amount of alcohol in your bloodstream. If your BAC reads 0.08% or higher, you could face legal consequences under Florida’s DUI laws.

Can a breath test be inaccurate?

Although breath tests are generally reliable, factors like machine calibration, equipment malfunction, or medical conditions can lead to inaccurate results. For example, acid reflux or diabetes can cause the device to register a falsely high BAC. If you believe the test results are incorrect, you can challenge them in court.

What happens if you refuse a breath test?

Refusing a breath test in Florida can lead to severe consequences. Florida’s “implied consent” law means you automatically agree to take the test by driving on the state’s roads. If you refuse, officers will suspend your driver’s license for up to a year. Refusal can also result in additional penalties if you are convicted of DUI.

Knowing how breath tests work and the consequences of refusing one in Florida helps you make informed decisions during a DUI stop. With this understanding, you can approach the situation with confidence.