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ZERO BREEZE Mark 3 Portable AC for Semi-Trucks
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Tired of Sweating Through Your Breaks? Long hours on the road wear you down, but when it’s finally time to rest, your cab feels like an oven—hot, stuffy, and impossible to relax in. You need a break to stay compliant with DOT’s 14-hour rule, but cooling down isn’t so simple. Running your truck’s AC means idling the engine, which can violate state or company idling restrictions, waste fuel, and put unnecessary wear on your engine. You’re stuck between sweating through your break or risking fines and maintenance costs.

And when you're waiting at a loading dock under the scorching sun, there's no escape from the heat. If you travel with a pet, it’s even worse—their body temperature is naturally higher, and they overheat faster.

So is there a way to stay cool without breaking the rules or wasting fuel?

YES! ZERO BREEZE Mark 3 has you covered. No idling. No extra fuel costs. Just portable, powerful cooling whenever you need it.

Portable and Flexible

At just 22" × 10" × 12" and 22 lbs, the Mark 3 is easy to transport, set up and store, designed for life on the move. Use it in your cab, at loading docks, or even under the truck while making repairs. Wherever you need a break from the heat, the Mark 3 delivers.

A truck driver in a safety vest carries the ZERO BREEZE Mark 3 portable air conditioner into the cab of a semi-truck at sunset, preparing for sleeper cooling.
ZERO BREEZE Mark 3 portable air conditioner is in use inside a truck sleeper cabin, cooling a resting man with a front air outlet duct while he uses his phone.

Battery-Powered Convenience

No need for shore power or idling. The Mark 3 runs on a rechargeable battery, providing 2–7 hours of cooling per charge, depending on the mode. Recharging is easy—use your truck’s cigarette lighter, solar panels, or a portable power station. Want longer runtime? Stack extra batteries and stay cool for as long as you need.

Powerful, Cost-Effective Cooling

With 5,280 BTU cooling power and a 10.56 EER, the Mark 3 offers efficient, fuel-free comfort that saves you money. No more running the engine just for AC. No more unnecessary fuel costs. Just turn it on and enjoy powerful cooling while protecting your engine from extra wear.

Mark 3 is placed on the hood of a Freightliner semi-truck.
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC
ZERO BREEZE Mark 3 AC

ZERO BREEZE Mark 3 AC

$1,399.99 $1,299.99
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Type

View Mark 3 Series User Manual 

Cooling Capacity 1550W/ 5280BTU
Heating Capacity 1700W/ 5800BTU
Working Mode Rocket/Cool/Sleep/Fan/Dry/Care/Heating
Cooling Rated Input 500W
Wind Speed Level 4
Rated Working Voltage 48V DC
Working Voltage Range 38V-58.5V
Thermostat Setting Cooling: 61℉-82℉/16°C - 28°C 
Heating: 64℉-88℉/18°C - 31°C
Dehumidifying: 15% - 90% relative humidity
AC Adapter Input 100V-240V (50Hz/ 60Hz)
Ambient Temperature for Operation 50°F-104°F/10°C-40°C
Ambient Temperature for Storage 14°F-140°F/-10°C-60°C
Refrigerant R290
Unit Size
22"L x 10"W x 12"H / 56cm x 26cm x 31cm
Weight 22lbs/10kg
Moisture Protection IPX4
Ventilation Configuration Dual Hose

 

Mark 3 Battery Specification

View Mark 3 Battery User Manual

Battery Type 21700 Lithium-Ion Polymer Battery
Net Weight
14lbs/6.4kg
Unit Size
20"L x 8"W x 4"H / 51cm x 21cm x 11cm
Capacity 1022Wh
DC Charge Input Voltage 12V-60V
Charge from 0% to 80% About 2 hours (by official power adapter)
Safety Short protection
Over current protection
Low voltage protection
Over temperature protection
Chainable Support 2, 3, 4, or more batteries chaining one after another
Operating Temperature
14°F-104°F/-10℃-40℃
Output Power Max 550W
Output Voltage 42V-58.8V
12V Anderson Output 12V/10A Max(120W)
USB Type C PD(100W Max)
USB Type A QC 3.0 18W
Charging Method Power adapter from the wall outlet
Solar Panels
Cigarette Port
Charging Limited Current 10A
Charging while discharging Yes

Mark 3 Air Conditioner Package:

  • ZERO BREEZE Mark 3 Air Conditioner x 1
  • 50V DC Power Adapter for Wall Outlet x 1
  • 2.4G Wireless Remote Controller x 1
  • Drainage Pipe x 1
  • Front Outlet Duct x1
    Φ4.33” (11 cm)
  • Front Inlet Duct / Rear Inlet Duct x1
    Φ5.12” (13 cm)
  • Rear Outlet Duct x 1
    Φ5.91” (15 cm)
  • Front Inlet Adapter x 1
  • Front Outlet Adapter x 1
  • Rear Inlet Adapter x 1
  • Rear Outlet Adapter x 1
  • ZERO BREEZE Mark 3 User Manual x 1

Mark 3 Battery Package:

  • Mark 3 Battery × 1
  • Mark 3 User Manual × 1

Stay Cool, Save Fuel

Can ZERO BREEZE Reduce Trucker Idle Time and Keep Money in Your Pocket?
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"Switching to the portable AC in my Freightliner Cascadia has cut my diesel costs significantly. I run two batteries through the night, and it's economical. A must-have for cost-conscious truckers like me."

George

"Even though the portable air conditioner is optimized for nighttime, I've had success during the day by directing the cool air under a blanket in my Ford F-650. It turns the cab into a mini oasis.I recommend getting the dual battery bundle for extended comfort, and don't forget the 12v to 24v adapter for seamless integration with your truck's power system."

Jim

"My truck doesn't have an APU, and it's a big expense to install one. The portable AC has been a lifesaver during the summer. As long as it's not too hot during the day, I just use the Mark 2 pointed at me. If it gets really hot, I idle the truck AC, but this has already saved me a lot of fuel. The best part is that the unit keeps me cool and comfortable all night long."

John D

"My wife drives a Peterbilt 579 through Nevada, and the Zero Breeze has been a lifesaver in 100+ degree weather. It keeps her cool without the need for idling. It's critical for her comfort and safety on long hauls. "

Mark

"My truck's APU broke down, and I didn't want to spend more money fixing it. The ZERO BREEZE was a great solution. From ordering to using it took less than a week, and I installed it myself. It's been a game-changer for my comfort during the nights."

Tom

"Our company trucks don't have APUs, and we often switch vehicles. The portable AC has been fantastic. It's so easy to move from one truck to another. It provides excellent cooling, and the setup is quick and simple. This flexibility is exactly what I needed."

Michael B

"I've been using the portable AC for a few weeks now. My truck doesn't have an APU, and installing one is too costly. The unit cools my cab efficiently, especially at night. It's saved me a lot on fuel and maintenance. Highly recommend it for any trucker without an APU."

Emily S

FAQs

Mark 3 AC Only: 22" L x 10" W x 12" H (56 cm x 26 cm x 31 cm) and 22 lbs (10 kg)

Mark 3 Plus: 22"L x 10"W x 16"H and 36 lbs

5,280 BTU can typically cool a small room or an area of about 100 to 150 square feet. However, this can vary based on factors like ceiling height, insulation quality, local climate, and the number of windows and doors.

One Mark 3 battery can run 2-7h on a single charge. It depends on the running mode and the environment you are in.

Yes.

One Mark 2 battery can charge one Mark 3 battery at present. If you have two Mark 2 batteries, they can be used in series with a DlY cable to power the Mark 3 directly.

The Mark 3 uses a dual-hose system to expel heat. The process is similar to the Mark 2. One hose draws in outside air, which then flows through the condenser. The heat from the condenser is finally expelled outside through the second hose.

There is a pump inside the Mark 3 and a sensor placed in the tray. When a certain amount of water accumulates, it will drain automatically, eliminating the need to manually tilt it to drain.

R290.

If Mark 3 is operated at temperatures below 50℉/10°C, the evaporator may freeze, triggering the unit's protective mechanism, which will cause it to stop working.

Purchases from the official website come with a 1-year warranty.