Health & Wellness

The Best Personal Breathalyzers

This post contains affiliate links. As an Amazon Associate we earn from qualifying purchases.

Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Ensuring responsible choices often involves understanding your current state. A personal breathalyzer can be a valuable tool for personal awareness and safety, providing quick and discreet readings. Choosing the right device is crucial for accuracy, reliability, and ease of use.

No. 1
BACtrack S80 Breathalyzer | Professional-Grade | FDA 510(k) Cleared | DOT & NHTSA Compliant | Portable Breath...
  • #1-RATED BREATHALYZER BY WIRECUTTER - "After 65 hours of research, which included getting intoxicated at a police station to test personal breathalyzers alongside law enforcement equipment, we're sure the BACtrack S80 is the most accurate, reliable, and...
  • PROFESSIONAL-GRADE ACCURACY - Powered by BACtrack's largest platinum-based Xtend Fuel Cell Sensor, the S80 utilizes the same pro-grade technology trusted by hospitals, clinics, and even law enforcement.
  • SIMPLE, ONE-BUTTON OPERATION - The BACtrack S80 is extremely easy to use. Simply insert the two included AA batteries, power on your device & begin testing. You are also able to change units of measurements and set user-defined BAC thresholds for testing.
  • DOT/NHTSA APPROVED & FDA 510(k) CLEARED - Designated by the US DOT & NHTSA as an approved breath alcohol screening device, the S80 has also been cleared by the FDA for personal use, making it the top choice of safety-conscious individuals and businesses.
No. 2
BACtrack C6 Keychain Breathalyzer | BAC Alcohol Tester | Optional App
  • ESTIMATE YOUR ALCOHOL LEVEL WITH PRO-GRADE ACCURACY - Powered by BACtrack's patented BluFire Fuel Cell Sensor, the C6 utilizes the same professional-grade technology trusted by hospitals, clinics, and even law enforcement.
  • KNOW WHEN YOUR BAC WILL RETURN TO 0.00% - BACtrack's innovative ZeroLine technology estimates the time until your blood alcohol content is 0.00%, allowing you to quickly and easily know where you stand.
  • SMALL & PORTABLE DESIGN - This mini handheld breathalyzer measures fits easily in a purse, pocket, or on your keychain, so you can always have it when you need it.
  • OPTIONAL WIRELESS CONNECTIVITY - Use the BACtrack C6 with or without your smartphone. "Standalone Mode" delivers your BAC results directly to your C6. "App Mode" wirelessly delivers your BAC results to the BACtrack App on your smartphone. Easily switch...
SaleNo. 3
BACtrack C8 Breathalyzer | BAC Alcohol Tester | Optional App
  • ESTIMATE YOUR ALCOHOL LEVEL WITH PRO-GRADE ACCURACY - Powered by BACtrack's patented BluFire Fuel Cell Sensor, the C8 utilizes the same professional-grade technology trusted by hospitals, clinics, and even law enforcement
  • KNOW WHEN YOUR BAC WILL RETURN TO 0.00% - BACtrack's innovative ZeroLine technology estimates the time until your blood alcohol content is 0.00%, allowing you to quickly and easily know where you stand
  • SMALL & PORTABLE DESIGN - This mini handheld breathalyzer fits easily in a purse, pocket, or car, so you can always have it when you need it
  • OPTIONAL WIRELESS CONNECTIVITY - Use the BACtrack C8 with or without your smartphone. "Standalone Mode" delivers your BAC results directly to your C8. "App Mode" wirelessly delivers your BAC results to the BACtrack App on your smartphone. Easily switch...
SaleNo. 4
Layfitty Breathalyzer,Alcohol Tester with LCD Digital Display,Breathalyzer with 10 Mouthpieces for Home and...
  • Upgraded breathalyzer:​​Equipped with a ​​2026 upgraded semiconductor sensor​​,Perfect for family gatherings or as a thoughtful gift.
  • ​​Easy to Use:​​Insert two AA batteries.Press the power button and wait ​​15 seconds​​ for the device to warm up.Blow steadily into the mouthpiece for ​​3–5 seconds​​.Results appear on the LCD screen within ​​5 seconds​​.
  • ​​Portable Design:​​Weighing ​​only 110 grams​​, this compact device easily fits into your wallet or pocket. Ideal for home use, parties, or social events.
  • ​​Visual & Audio Alerts:​​Safe (Below 0.08% BAC):​​ Green LED lights up with ​​three short beeps​​.Warning (Above 0.08% BAC):​​ Red LED flashes with ​​three long beeps​​.
SaleNo. 5
Breathalyzer for Alcohol, Professional Accuracy, USB-C Rechargeable
  • Professional Accuracy: High-sensitivity alcohol sensor, intelligent chip and precision algorithm work together to deliver fast, stable %BAC readings for convenient BAC testing at home, after dinner, at parties or while traveling.
  • Fast One-Button Testing: Power on, wait for the quick warm-up and blow steadily into the mouthpiece to see your result within seconds; for best accuracy, test at least 20 minutes after drinking, eating, smoking or using mouthwash.
  • Easy-to-Read BAC Alerts: LCD shows exact %BAC with green for 0.00-0.019, yellow for 0.02-0.079 and red for 0.08 or above; the color-coded display and buzzer help you understand results quickly, even in low light.
  • No-Wait Continuous Testing: Ready for another test without a lengthy cooldown; simply press the button again after each result, ideal for repeat testing, couples, families, parties and group gatherings.
SaleNo. 6
Personal Breathalyzer with Digital LCD Display, Portable Alcohol Tester with 10 Replaceable Mouthpieces for...
  • THREE WAYS TO VIEW RESULTS: Read estimated alcohol levels on the blue-backlit LCD screen. Switch between %BAC, ‰BAC, and mg/L to use your preferred display unit.
  • EASY ONE-BUTTON TESTING: Insert three AAA batteries (not included) and press the button to start. After a 15-second warm-up, blow continuously for 3–5 seconds to see your result.
  • SENSOR-BASED READINGS: The built-in sensor provides alcohol-level estimates for personal testing or use with family and friends. Results appear clearly on the LCD screen.
  • READY TO TAKE ALONG: The lightweight, handheld breathalyzer fits in a pocket or bag for use at home, at social gatherings, or while traveling. Ten mouthpieces are included for use by multiple people.
No. 7
BACtrack Element Breathalyzer | Police-Grade | DOT & NHTSA Compliant
  • PRO-GRADE ACCURACY - Powered by BACtrack's platinum-based Xtend Fuel Cell Sensor, the Element utilizes the same professional-grade technology trusted by hospitals, clinics, and even law enforcement.
  • ONE-BUTTON OPERATION - The BACtrack Element is extremely easy to use. Simply insert the two included AAA batteries, power on your breathalyzer and begin testing. It's that easy.
  • DOT/NHTSA COMPLIANT - Designed to meet the rigorous standards of expert blood alcohol screeners, from roadside law enforcement to hospital employees & treatment professionals, the Element is compliant with US DOT & NHTSA regulations for alcohol screening...
  • SMALL & PORTABLE DESIGN - This handheld breathalyzer fits easily in a purse, pocket, or car, so you can always have it when you need it.
No. 8
BACtrack Go Keychain Breathalyzer | Portable Alcohol Tester | White
  • QUICKLY & EASILY ESTIMATE YOUR BAC - Proprietary Advanced MicroCheck Sensor technology delivers results in seconds.
  • EASY TO USE - One-button operation means you simply power on your Go breathalyzer keychain and begin testing your blood alcohol content in seconds. It's that easy!
  • SMALL & PORTABLE DESIGN - This mini handheld breathalyzer measures fits easily in a purse, pocket, or on your keychain, so you can always have it when you need it.
  • OPTIMAL BREATH CAPTURE - The innovative fold-out mouthpiece ensures only your breath goes into the alcohol tester, while other airborne pollutants are kept out.
SaleNo. 9
YYBNN Breathalyzer Alcohol Tester, LCD Display, 10 Mouthpieces, Black
  • HIGH-SENSITIVITY SENSOR FOR BAC TESTING: Designed for personal breath alcohol testing, this breathalyzer uses a high-sensitivity sensor and integrated chip to measure breath alcohol concentration and display BAC readings clearly for convenient personal...
  • LCD DISPLAY WITH 3 MEASUREMENT UNITS: The blue-backlit LCD screen makes results easy to read in different lighting conditions. Choose from %BAC, ‰BAC, and mg/L units to match your preferred measurement format.
  • SIMPLE ONE-BUTTON OPERATION: Insert 3 AAA batteries (not included), press the button, allow approximately 15 seconds for warm-up, then blow evenly for 5 seconds and view the result on the display. Straightforward operation makes routine testing quick and...
  • COMPACT AND PORTABLE DESIGN: Measuring approximately 4.7 x 2.4 x 0.4 inches, this portable breathalyzer has a slim profile that fits easily in a pocket, bag, or travel case. Suitable for personal use at home, parties, gatherings, and while traveling.
No. 10
BACtrack Eclipse Professional Breathalyzer | Police-Grade Alcohol Tester
  • PRO-GRADE ACCURACY - Powered by BACtrack's platinum-based Xtend Fuel Cell Sensor, the Eclipse utilizes the same professional-grade technology trusted by law enforcement and medical professionals. 

  • PRECISE - The Eclipse breathalyzer is designed for serious users who demand accuracy and precise results.
  • CUSTOM FEATURES - Easy to use with a bright LCD display to set custom features including 5 international units of measure.
  • DURABLE & PORTABLE - Compact handheld design allows for quick testing whether at home, on the job, or on the go.

Last update on 2026-10-23 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Personal Breathalyzers

Accuracy and Sensor Type

The most critical factor in a personal breathalyzer is its accuracy. Look for devices that utilize semiconductor or electrochemical sensors. Electrochemical sensors are generally considered more accurate and less prone to interference from other substances compared to semiconductor sensors. Always check for certifications or standards the device meets, such as those from the NHTSA or FDA, though these are more common for professional-grade devices.

Ease of Use and Portability

A good personal breathalyzer should be intuitive to operate, even for first-time users. Features like a clear digital display, simple one-button operation, and quick warm-up times contribute to a user-friendly experience. Portability is also key; most personal devices are designed to be compact and lightweight, easily fitting into a pocket or purse for on-the-go checks.

Calibration and Maintenance

Breathalyzers require periodic calibration to maintain their accuracy. Check the manufacturer's recommendations for calibration frequency, which can range from every 6 to 12 months. Some devices offer self-calibration features, while others may need to be sent back to the manufacturer. Consider the availability and cost of replacement mouthpieces if included.

Additional Features

Beyond basic readings, some devices offer advanced features. These might include memory functions to store previous test results, different units of measurement (e.g., BAC, g/L), audible or visual alerts when a certain threshold is reached, and smartphone connectivity for tracking or sharing results. Evaluate which, if any, of these extras are important for your needs.

Frequently Asked Questions

How often do I need to calibrate my breathalyzer?
Calibration frequency varies by model, but most manufacturers recommend recalibrating every 6 to 12 months. Regular calibration ensures the device provides accurate and reliable readings over time.
What does BAC stand for?
BAC stands for Blood Alcohol Content. It is a measure of the amount of alcohol present in a person's bloodstream, typically expressed as a percentage.
Can other substances affect breathalyzer readings?
Yes, certain substances like mouthwash containing alcohol, or even some foods, can temporarily affect readings. It's best to wait at least 15-20 minutes after consuming anything or using oral hygiene products before taking a test.
Are personal breathalyzers legally admissible in court?
Generally, personal breathalyzers are intended for personal awareness and are not typically calibrated to legal standards for law enforcement. Their readings may not be admissible as evidence in legal proceedings.
How do I clean and store my breathalyzer?
Most devices can be wiped clean with a dry cloth. Avoid using liquids or harsh chemicals. Store the device in a cool, dry place, away from extreme temperatures and humidity, to preserve its functionality.

How we compare Health & Wellness

1 Specifications: we compare the key features and specifications listed by the manufacturer and on Amazon.
2 Customer ratings: we take into account the average Amazon rating and the number of reviews.
3 Price: we check the current price and highlight notable deals.
4 Updates: comparisons are refreshed regularly as prices and availability change.

Our comparisons are reviewed and updated regularly to reflect the latest products and prices.

Was this article helpful?

Thanks for your feedback!

Thanks — we'll work to improve this article.