The battery-powered ZERO BREEZE Mark 3 portable AC is placed outdoors in a scenic natural setting. The battery-powered ZERO BREEZE Mark 3 portable AC is placed outdoors in a scenic natural setting.

Stay Cool, Anywhere

The ultimate portable air conditioning for any adventure or profession—lightweight, powerful, and efficient.
Explore the Solution

Portable AC, Revolutionized

Summer heat can be unbearable—even dangerous. ZERO BREEZE Mark 3 is not just another portable AC; it’s engineered for true mobility. Unlike bulky units or fuel-wasting car ACs, it provides a lightweight, efficient cooling solution powered by a rechargeable battery. Whether you're camping, working outdoors, or on the road, Mark 3 is your trusted companion.

A vintage green Formula 1 racecar is competing on a track during a high-speed race.
A family is sleeping comfortably in a tent with the Mark 3 portable AC providing cool air.
A worker is using a drill on a construction project outdoors, with the Mark 3 portable AC delivering cooling relief.
A truck driver relaxes while using the Mark 2 portable AC, directing its front air outlet duct for personal cooling.
Two men are driving a boat on the sea at sunset, enjoying the serene atmosphere.
Racing
Camping
Construction
Semi-Truck
Boat
Burn rubber, not yourself. With lightning-fast cooling and unbeatable portability, the ZERO BREEZE Mark 3 keeps your crew and gear cool, ensuring peak performance on the track.
When space is tight and power is scarce, the ZERO BREEZE Mark 3 delivers. Compact enough to fit in your trunk or tent, it provides efficient cooling with versatile power options—including its own battery—so you stay comfortable on every off-grid adventure.
Blazing sun, heavy gear, no outlets—it’s just another day on the job. The ZERO BREEZE Mark 3 powers through with battery-driven cooling, keeping you cool, focused, and ready to move in the harshest conditions.
Quality rest isn’t a luxury—it’s essential on the road. ZERO BREEZE Mark 3 delivers quiet, fuel-efficient cooling without idling, pricey APUs, or loud, energy-hungry ACs. Sleep soundly, save money, and stay sharp mile after mile.
Salt, humidity, and cramped spaces can make any voyage uncomfortable. Lightweight and compact, the ZERO BREEZE Mark 3 delivers efficient cooling without the need for complex insulation, ensuring comfort whether at the helm or in the cabin.

Need a Custom Solution?

Haven’t found your application? Contact our expert for a customized solution.

Innovation at Its Core

Micro Twin-Cylinder Compressor
Portable Power Module
Dual-Duct System
Active Drain System
Developed by ZERO BREEZE, this cutting-edge compressor is the backbone of rock-solid performance, unmatched portability, and whisper-quiet cooling power.
The Mark 3 battery offers true power freedom, enabling you to go beyond fixed power sources. Stack multiple batteries together for extended runtime, customized to your needs.
Our custom-engineered ducts and adapters supercharge airflow, delivering peak cooling performance with the flexibility to fit any setup you’ve got.
The advanced active drain system, with a built-in pump and sensor, automatically eliminates condensation, keeping your space dry and hassle-free.

A Decade of Commitment

We weren’t the first to think of portable AC, but we’re the only ones who pushed the limits to make it a reality and keep pushing forward for over a decade. Our drive is simple: to ease outdoor living with innovations. That's why we focus on portability and comfort, making it easy for outdoor people to get a cool, safe, and comfortable breeze wherever they are.

From left to right, Mark 3, Mark 2, and Mark 1 are displayed on rocks, showcasing the different models.
Trusted Globally

Used in over 60 countries, from scorching deserts to racing tracks, by adventurers, professionals, and everyday users.

A racecar driver is holding an air cooling hose, staying cool and focused before a race.
An HVAC technician in a blue protective uniform performs maintenance on a large industrial air conditioning unit.
A black helicopter is parked on the ground, ready for takeoff.
The Mark 2 portable AC is installed on a boat's deck, with its flexible duct connected to the front air outlet, providing cool air to the cabin.
The Mark 3 is placed inside a van, providing cooling comfort to a person working on DIY renovations.
A golfer enjoys a refreshing breeze provided by the Mark 2 portable air conditioner installed in the rear of his golf cart.
A driver is working under a semi-truck, with the Mark 2 providing cooling through a flexible duct.
The Mark 2, with its flexible duct, keeps a white puppy cool and comfortable in a truck cab.
A man carries the Mark 3 in one hand while climbing a ladder to his rooftop tent.

Dive into Our World

News Applications Stories
Update on ZERO BREEZE Mark 3 Portable AC at CES 2025

Is This Really an Air Conditioner? A Look at ZERO BREEZE at CES 2025

As CES 2025 wraps up, we're excited to update you on the ZERO BREEZE Mark 3, our most portable outdoor air conditioner. The top question we’ve heard? 'Is this really an air conditioner?' Yes, it is! Not traditional, but an innovative portable unit. Powered by a unique micro compressor, Mark 3 delivers real cooling power in a compact form. Read on to uncover its story and see it firsthand at the show.

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ZERO BREEZE Mark 3 Portable AC at CES 2025

ZERO BREEZE Unveils the Most Portable Air Conditioner Mark 3 at CES 2025

Discover the future of portable cooling with ZERO BREEZE Mark 3 at CES 2025. Compact, powerful, and designed for outdoor adventures, this portable AC brings effortless comfort wherever you go. With innovative features like off-grid power, customizable cooling modes, and easy portability, it’s the ultimate solution for beating the heat. Visit us at CES 2025 in Las Vegas (Booth 9744, North Hall) to experience it for yourself!

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ZERO BREEZE Mark 3 the best portable outdoor air conditioner

What Is a Good Portable Air Conditioner for Outdoor Use?

Summer heat can be unbearable, especially when you're outdoors—whether camping, working, or racing. ZERO BREEZE Mark 3 is the perfect portable air conditioner, designed to meet all your cooling needs with its portability, flexible power options, energy efficiency, and enhanced user experience. Stay cool, anywhere with Mark 3.

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The latest ZERO BREEZE Mark 3 portable ac

Experience Ultimate Outdoor Comfort with the ZERO BREEZE Mark 3

The ZERO BREEZE Mark 3 is a versatile portable air conditioner designed to provide ultimate comfort in any outdoor setting. With its powerful cooling, efficient dual-hose system, and customizable settings, it's the perfect companion for camping, fishing, or any outdoor adventure. Its compact design, convenient power options, and energy efficiency make it easy to carry and use, ensuring you stay comfortable and refreshed wherever you go.

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Real User Feedback: Are Semi-Truck Drivers Satisfied with the Mark 2 Portable A/C and How They Use It?

Real User Feedback: Are Semi-Truck Drivers Satisfied with the Mark 2 Portable A/C and How They Use It?

Discover how semi-truck drivers are staying cool on the road with the Mark 2 portable A/C. Read real user feedback, learn setup tips, and find out if this installation-free solution meets their needs.

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DIY Air Conditioner for Sprinter Van Motorhome

DIY Air Conditioner for Sprinter Van Motorhome

Two different placing setup of the ZERO BREEZE Mark 2 AC for indoor and outdoor. Both meet your limited RV space and cooling needs. The ZERO BREEZE Mark II definitely can cool the bedroom area to make the space more comfortable; however, the most effective use of the ZERO BREEZE is as a spot cooler, having it blow a chilly breeze on you while you sleep - - you'll need a blanket, because it's pretty darned cold.

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The best AC for my SeaArk ProCat 200 Boat

The best AC for my SeaArk ProCat 200 Boat

I recently installed a ZERO BREEZE Mark 2 in my Sea Ark Procat 200 Catfishing Boat in order to fish for longer periods of time on hot days in Arkansas. The unit far exceeded my expectations in terms of keeping me cool while fishing with and without the Bimini Top Up.

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Cool My Lab Pet at the Office

Cool My Lab Pet at the Office

ZERO BREEZE truly has impacted my life in a positive way. I have a Chocolate Lab that comes to work with me every day. Our office is pet-friendly but incredibly hot. All-year-round. Until I met ZERO BREEZE. 

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The Mark 3 portable air conditioner sits near a lake, placed on a storage box next to a camping chair and a table with drinks and snacks, providing a comfortable cooling solution for outdoor relaxation.

Why I Upgraded Mark 2 to Mark 3: My Amazing Portable AC for Camping

The Mark 3 portable air conditioner is here! Compact, lightweight, and battery-powered for ultimate portability, it’s now more powerful and functional than ever. Wondering why Brian, a valued customer who’s used Mark 2 for nearly 5 years, decided to upgrade? Discover what led him to choose the Mark 3 and get his expert tips for using a portable AC.

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Is Air Conditioning in Overlanding a Luxury?

Is Air Conditioning in Overlanding a Luxury?

Discover whether air conditioning is a luxury or necessity for overlanding. Explore the benefits of portable air conditioning, including comfort, safety, and improved travel experience. Learn how innovations like the ZERO BREEZE Mark 2 can enhance your overlanding adventures, ensuring you stay cool and comfortable in the great outdoors. Read more to find out how to make your trips more enjoyable and why having air conditioning can be a game-changer for overlanders.

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Why I Quit 'Hard Mode Camping': A Story from Mark 2 User, Mike

Why I Quit 'Hard Mode Camping': A Story from Mark 2 User, Mike

That night, I slept like a baby in the cool breeze from the air conditioner. The next day, I felt refreshed, like I was back to my old camping self. My friend said something that really stuck with me: "We started camping to have fun." That got me thinking.

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From Land to Sea, and Even Above with ZERO BREEZE Mark 2

From Land to Sea, and Even Above with ZERO BREEZE Mark 2

The ZERO BREEZE Mark 2 portable air conditioner is a versatile and reliable cooling solution for outdoor enthusiasts. Its compact size, quiet operation, and easy setup make it ideal for various activities, from camping to flying. Customers have praised its effectiveness in keeping them cool and comfortable in diverse environments, including tents, vans, trailers, trucks, rooftop tents, boats, and even aircraft.

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The day we were on the driveline

The day we were on the driveline

​The Mark 2 AC has been used worldwide in a variety of fields. Mark 2 cools the battery at the starting grid before the race to keep the car in prime condition.

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