Protect Your Future & Your Family From A Deadly Mistake

Hosfu is an easy-to-use, police-grade breathalyzer that shows you undeniable, real-time numbers — so you can make the safe choice before your hand ever touches the ignition.

check_circle Police-Grade Accuracy — Zero false positives. Don't risk your life with cheap, unreliable detectors that guess your BAC.

check_circle Test Anytime, Anywhere — No waiting. Quick warm-up and fast recovery. Fits right in your pocket or glovebox.

check_circle Total Peace of Mind — Protects your license, your livelihood, and ensures you make it home safely to the people who matter most.

Get My Hosfu Breathalyzer

Note: Not Available on Amazon or eBay

"I only had two beers" is the deadliest phrase on American roads.

Every year, over 13,000 Americans die in drunk driving crashes. The real tragedy? Almost every driver I pull over genuinely believes they are sober. They trust their "tolerance". They drink a cup of black coffee. They wait an hour and feel completely "fine". But alcohol is a master of deception. It impairs your judgment long before it impairs your body. You can't feel a 0.08% BAC. You can't guess your exact reaction time.

The most haunting part isn’t being arrested. It’s when you realize that breath alcohol concentration isn’t just a number; it just cost a life. "

Sergeant John Reynolds
Major Crimes Unit

As Seen On

As Seen On

Introducing: The Hosfu Breathalyzer

Hosfu is a police-grade device specifically designed to display your real-time Blood Alcohol Concentration (BAC) with absolute precision, starting from 0.000%. This is an easy-to-use, highly accurate device that anyone can carry and test themselves in just a few seconds, without any guesswork or hesitation. Taking control of your safety before turning the ignition is one of the most important decisions you can make for yourself, your family, and everyone on the road.

Because the feeling of being "fine" can be a deadly illusion. But Hosfu always tells the truth.

Trusted By Officers. Built To Save Lives.

Hosfu was developed alongside law enforcement officers who saw the same tragedy repeat itself — drivers who thought they were "fine" because they relied on guesswork instead of hard numbers.

✓ U.S. Law Enforcement Compliant — Meets strict standards for BAC testing reliability and accuracy.

✓ Police-Grade Precision Sensors — The same advanced technology trusted by highway patrol officers.

✓ Independently Calibrated — Rigorously tested to ensure no false positives and consistent results.

Hosfu isn’t just another breathalyzer. It’s the device officers wish every driver had in their glovebox.

Like having an officer in your passenger seat — giving you undeniable proof before you turn the key.

What Makes Hosfu So Different

Mark T.
Verified Purchase
Fast shipping. The unboxing experience was great, and the device is remarkably quick to use. It takes just seconds to get an accurate reading, which fits perfectly into my pre-drive routine without any hassle. Finally, a solution that makes sense for anyone who drinks socially and drives.

HOSFU™ Pro Portable Breathalyzer

HOSFU™ Pro Portable Breathalyzer

 4.8/5 (150+ Reviews) | 5,000+ Happy Users

🎯 Police-Grade Accuracy — Results You Can Trust

High-precision electrochemical sensors display your exact BAC starting from 0.000%.

🚫 No False Positives — Flawless Consistency

Advanced technology ignores interference from breath mints, keto diets, and acetone.

🛡️ Know Your Number — Prevent Tragedies

Takes the deadly guesswork out of drinking, giving you undeniable proof before you drive.

👮 Officer Recommended — 100% Risk-Free

Built to law enforcement standards and backed by a 3-year warranty plus a 100-day trial.

HOSFU™ Pro Portable Breathalyzer

HOSFU™ Pro Portable Breathalyzer

$74.99
$74.99 $99.99
SAVE 25% Sold out

Flash Sale: Up to 30% Off Today! Free & Discreet Shipping on all orders.

  • assured_workload 30-Day Money-Back Guarantee
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Hosfu utilizes advanced, police-grade precision electrochemical sensors. Unlike cheap semiconductor breathalyzers that can be tricked by breath mints, keto diets, or acetone, our technology specifically isolates alcohol. This ensures you get a highly accurate Blood Alcohol Concentration (BAC) reading starting from 0.000%. It’s independently calibrated to deliver undeniable proof you can trust, every single time.

It’s designed for speed and simplicity when you need it most. Just follow 3 easy steps:

  1. Power On & Wait: Press the power button. The device will quickly warm up and the screen will display "Wait".
  2. Blow steadily: Once the screen says "Blow", exhale continuously into the mouthpiece until you hear the beep.
  3. Read your exact number: Your BAC level will instantly appear. The smart display is color-coded (Green for OK, Yellow for Caution, Red for Danger) so you know exactly where you stand in seconds.

It replaces deadly guesswork with absolute certainty. Customers keep Hosfu in their cars because it consistently delivers reliable, repeatable results test after test, with lightning-fast recovery times. It’s not just a gadget; it’s an essential safety tool that provides peace of mind, protects families, and prevents life-altering mistakes before the ignition is ever turned. Plus, backed by a 3-Year Warranty, it's built for long-term trust.

Processing: 1-2 business days (with tracking number provided).

US Delivery: 10-14 business days.

International: 10-20 business days.

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Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Fast & Discreet Shipping • Hygienic Washable Mouthpieces • Police-Grade Precision • Instant BAC Readouts • Compact & Always Ready • Independently Calibrated • 100-Day Risk-Free Trial

Why Smart Drivers Trust HOSFU

Engineered for precision, consistency, and absolute peace of mind.

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Police-Grade Precision

Engineered in direct collaboration with law enforcement professionals. Hosfu isn't just another breathalyzer. It's the device officers wish every driver had in their glovebox.

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Results In Seconds

No long wait times. Fast warm-up and rapid analysis deliver your exact BAC reading instantly, so you can make safe decisions on the spot.

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High-Precision Sensor

Equipped with an imported, highly sensitive electrochemical sensor. It strictly isolates alcohol content and resists interference from acetone, giving you dependable and repeatable readouts every time.

power_lightning
Hygienic & Detachable

Features a detachable, food-grade PP nozzle that ensures a clean testing experience. It’s compact, easy to swap out, and perfectly hygienic if you need to share the device with family or friends.

Questions Men Ask Before Starting

Unlike cheap devices that use unreliable semiconductor chips, Hosfu uses advanced, police-grade electrochemical sensors. This means our device specifically isolates alcohol and will not give you "false positives" from keto diets, breath mints, or spicy foods. You get absolute accuracy starting from 0.000%.

For the most accurate results, we recommend waiting at least 15 to 20 minutes after your last drink or meal. This allows any residual alcohol in your mouth to dissipate, ensuring the device measures your true Blood Alcohol Concentration (BAC) from your deep lung air.

Hosfu is built for any responsible adult who drinks socially. Whether you enjoy a single glass of wine at dinner, a couple of beers after work, or attend weekend parties, this device is for anyone who refuses to gamble their life and future on a "guess."

Yes! Hosfu features a built-in, long-lasting rechargeable battery with a modern USB-C charging port. A single quick charge provides enough power for hundreds of consistent tests, so it’s always ready in your glovebox or pocket when you need it.

Absolutely. Your Hosfu comes with interchangeable, washable mouthpieces. You can easily snap on a fresh mouthpiece so everyone in your group can check their numbers safely and hygienically before heading home.

No. While Hosfu utilizes professional-grade technology for high accuracy, it is intended strictly as a personal safety and reference tool to help you make responsible decisions. It should never be used to justify drinking and driving or as legal evidence in a court of law.

We are fully confident in our police-grade accuracy. That’s why every Hosfu is backed by our 100-Day Risk-Free Trial and a 3-Year Warranty. If the device doesn't give you total peace of mind, simply return it for a full, hassle-free refund.

Medical & Health Disclaimer: The information and other content provided in this page, or in any linked materials, are not intended and should not be construed as medical advice, nor is the information a substitute for professional medical expertise or treatment.


If you or any other person has a medical concern, you should consult with your health care provider or seek other professional medical treatment. Never disregard professional medical advice or delay in seeking it because of something that have read on this page or in any linked materials. If you think you may have a medical emergency, call your doctor or emergency services immediately.