Frequently asked questions from customers and answers are posted here.


What does a breath alcohol tester measure?
Tester measures alcohol concentration in the breath, which means the air exhaled from the lungs. It is officially called a breath alcohol concentration (BrAC) measurement.
How can you determine the alcohol concentration from the breath?
When person ingests alcohol, it is absorbed into the blood in 10 to 30 minutes (the time varies depends on person). Then, the alcohol in the blood is discharged in the breath through the lungs. This is the principles and phenomena of what BrAC measurement based on.
I’ve heard of the term, blood alcohol content (BAC).
What is the difference from breath alcohol content (BrAC)
BAC means the alcohol concentration in one liter of blood, indicated by a percentage (BAC measurement). BrAC means the alcohol concentration in one liter of breath, indicated in milligrams per liter (mg/L) (BrAC measurement). Tokai-Denshi’s breath alcohol testers use the latter unit of milligrams per liter (mg/L). For details, please refer to the testing method specifications in the brochure.
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