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

$3,099.99 $2,499.99
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📦 Note: AC unit and batteries ship separately.

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

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

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ZERO BREEZE Mark 3. Innovation. Inside and Out.

Infographic highlights key features of the ZERO BREEZE Super Portable AC Mark 3. It shows a sleek black portable air conditioner alongside its technical specs: 5,280 BTU cooling capacity, 22 lb unit weight, 46 dB noise level, and 25 L volume. The unit uses a custom-engineered 48V micro compressor weighing just 3.9 lb, up to 7x lighter than conventional models. It supports 2.4G wireless remote control with feedback, uses eco-friendly R290 refrigerant, offers 7 tailored cooling modes, and includes a stackable
A man is placing the portable Mark 3 into a rooftop tent. A man is placing the portable Mark 3 into a rooftop tent.

Beat 100°F Nights with
a 22-lb AC.

Keep Cool Wherever You Go

A man sleeps peacefully in a sleeper cab of a truck while the Mark 3 cools the space beside him. The AC unit is positioned on a storage surface with a flexible air duct directed toward the bed.

Sleep cool without idling or an APU

Mark 3 keeps your bunk at 72°F all night with engine off and full compliance.

A compact white travel trailer is hitched to a Jeep and parked in a desert landscape at night. The trailer is illuminated by warm exterior lights under a starry sky, with rock formations visible in the background.

Off‑grid AC for compact trailers

A 1 kWh battery runs Sleep Mode for up to 6 hours. No hookups, no campground noise.

A glowing rooftop tent mounted on a yellow Jeep Wrangler is illuminated against a clear night sky in a desert landscape. The tent is accessed by a ladder, and the moonlight casts a soft glow over the rocky terrain.

Portable cooling for rooftop tents

Just 22 lb and 46 dB in Sleep Mode keeps your tent at 73°F, even on 105°F desert nights.

A serene nighttime scene at a marina featuring a white sailboat docked near the shore. The boat is illuminated by warm dock lights reflecting on the calm water, with dark hills and deep blue clouds in the background.

Flexible Comfort at Anchor

Quiet, compact, and self-draining, Mark 3 runs on its detachable battery. No generator required.

5,280BTU

|

22lb

|

46dB

More cooling per pound than ANY portable AC. Period.
Zero Breeze Mark 3 visual overview

How Mark 3 Compares in the Real World

Mark 3
(Carry-Size Battery A/C)		 Big-Block Battery A/C
50-lb Class		 Traditional Portable A/C
+ Generator
Cooling Power5,280 BTU≈ 5,000 BTU≈ 5,000 BTU
Main-Unit Weight22 lb / 10 kg33.7 lb / 15.3 kg 1.5× heavier58.2 lb / 26.3 kg 2.6× heavier
Main-Unit Volume1,525 in³ (≈ 25 L)3,150 in³ (≈ 52 L)3,251 in³ (≈ 53 L)
Power-Source Weight
(≈ 1 kWh)		14 lb / 6.4 kg21.4 lb / 9.7 kg28.7 lb / 13 kg
Total to Lift Every Night36 lb / 16 kg55 lb / 25 kg86 lb / 39 kg
Set-Up TimePlug & cool in 60 sTwo-hand carry • manual drainUnload gen • fuel • mount A/C
Sleep Mode Noise46 dB55 dB+≥ 65 dB
Cabin Foot-PrintLike a 25 L travel duffelCarry-on suitcaseTwo bulky boxes + fuel can
Price (unit + power)$1,299 – 1,899$1,999+$700 – 1,000

*Weights & volumes from public specs. Generator combo = 1 kW inverter unit + 5k BTU portable A/C.

Thermostat Setting

We know everyone experiences heat differently so take advantage of the thermostat feature and let yourself forget that the temperature was ever an issue. Adjust the cooling, heating, and dehumidifying ranges freely according to your needs.

Thermostat setting-1.webp__PID:0a00472a-c3ec-4f65-a603-bad160c2b581

Innovation Made for Outdoor Cooling

True Portable Cooling
Purpose-Built Cooling System
Hands-Free Drainage
Flexible Off‑Grid Power
Unlike other "portable" ACs with bulky 18–26 lbs compressors, Mark 3 integrates a custom 3.9 lbs 48V micro-compressor, delivering true portability and 5,280 BTU of whisper-quiet cooling power.
Mark 3 isn’t made from stock parts. Its evaporator, condenser, fan, and duct system are custom fitted into a compact, travel-bag-sized body, allowing for fast hose setup and smooth, quiet airflow.
The built-in micro sensor monitors water levels and activates the internal pump to drain automatically. No manual emptying, just uninterrupted cooling.
Mark 3’s detachable battery supports 12–60V DC, solar, car, and AC charging. It powers the unit while charging and enables extended runtime with extra modules.

"This is the most portable air conditioner we've ever seen, and is perfect for keeping the temperature down on camping trips and other outdoor adventures."

—T3, a leading technology media outlet

Logo of T3 magazine features a bold, stylized red "T3" in uppercase on a white background, with the "T" slightly overlapping the "3".

7 Modes Tailored for Your Outdoor Adventure

Whether you need rapid relief after a day in the sun or gentle airflow for a restful night, Mark 3 adapts to every outdoor moment. With versatile settings like Rocket, Cool, Sleep, Fan, Dry, Care, and Heating, it is built to handle heat, humidity, and changing conditions wherever your adventure takes you.

Close-up view of the ZERO BREEZE Mark 3 portable air conditioner’s top control panel displays a digital temperature readout of 60.5°F in blue light. The panel is sleek with a metallic and black finish. To the left, seven mode icons are vertically aligned, symbolizing rocket, cool, sleep, fan, dry, care, and heating mode.

Reliable Power for Every Outdoor Moment

The Mark 3 battery supports a wide 12–60V DC input range and features a built-in 500W MPPT module for efficient solar charging. It reaches 80% charge in just 2 hours. With a 1022Wh capacity and built-in extendable cable, it also includes USB-C, USB-A, and Anderson outputs so you can charge your phones, laptops, and other mobile devices—anywhere you go.

The image of the ZERO BREEZE Mark 3 detachable battery pack is shown from two angles. The design features a compact, rectangular form with rounded edges, integrated handles, and a visible control interface including ports, power button, and battery level indicator.

Charging While Discharging

Connect multiple batteries to double, triple or even quadruple your battery life!

Three Mark 3 batteries are stacked to extend runtime, ensuring longer use.

Upgraded Power Supply System

It's not just an air conditioner, it's a 48V cooling system.

A Mark 3 battery is recharged by solar panels while simultaneously powering the Mark 3 portable air conditioner.

By AC 500W Adapter
Power up your 1022Wh Mark 3 battery from 0% to 80% in just 2 hours. Compatible with RV and portable power station AC adapters.


By Mark 3 Batteries
Enjoy 7 hours of sleep mode comfort. 2 batteries in series with the built-in power cable ensure all-night running.


By 500W MPPT Solar
Mark 3 battery's built-in 500W MPPT module allows charging via 12-60V solar panels, reaching 80% charge in just 2 hours.


By 12V Vehicle
You can recharge your Mark 3 Battery on the go using the cigarette socket. (Car charging cable needs to be purchased separately.)

Don't Just Take Our Word

What Our Customers Say

★★★★★

Yes it's expensive but compared to a 12K APU it's damn worth it and must have to every OTR and Regional truck driver. Batteries charge very fast while driving takes about 4 hours for both and each battery gives you at least 5 hours of cooling before it switch to the second battery, you can stack them.

@Jordan Bar
★★★★★

I used my Mark 2 on heck of a lot. It really did what I wanted it to and that was to cool my small sleeper on my 384 Peterbilt. For several years. So far the Mark 3 has potential for me. I like it so far and it gets much cooler that the Mark 2.

@Travels of ShadoWolf
★★★★★

Delighted to receive Mark 3 and 2 batteries I ordered in September. It will work well in my Hymer Aktiv Class B campervan. Packaging, unit, batteries all top-notch quality. After running it for maybe 5 minutes, I am confident it will be worth the wait.

@Cindy M Foster
★★★★★

I was part of the funding group for this new Zero Breeze Mark3, it just arrived. This thing rocks. It only weighs 22 lbs. Can be run off ac, solar or a clip on battery (1022w). The unit sells for $1299 which is way cheaper than a dc inverter marine AC. I think these will become very popular. I'm using it for boating, camping, garage and when working outside.

@whatta life
★★★★★

I am more than happy with my Mark3, is working like a dream. I just sold my EcoWave2 air conditioner as it was extremely cumbersome & very, very heavy to use - my ZeroBreeze Mark3 is far superior on many levels & very easy to use. Thank you for a wonderful product.

Jackie Morton
★★★★★

I have owned approx 2500 aircraft and been flying for 40+ years. With the air in the cabin similar to a car with no airflow in the Summer it can be 130 degrees until you get to altitude. So far the Mark 3 is pretty nice. I put the outlet hose between the 2 front seats so it cools the front of the aircraft well. This really is one of the best things to come along for flying in the Summer. It's portable and doesn't physically connect to the plane.

Tony Plant

As seen on

Logos of media outlets that have featured ZERO BREEZE, including TIME, Reuters, CBS News, Yahoo Finance, MarketWatch, and more.

FAQs

For Mark 3 Basic (AC Only), the package includes the following:

  • ZERO BREEZE Mark 3 Air Conditioner x 1
  • 100V-240V AC Power Adapter for Wall Outlet x 1
  • 2.4G Wireless Remote Controller x 1
  • Drainage Pipe x 1
  • Front Outlet Duct x 1
    Φ4.33" (11 cm)
  • Front Inlet Duct / Rear Inlet Duct x 1
    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

Yes, it is included in the Mark 3 package.

The Mark 3 measures 22" x 10" x 12" and weighs 22 lbs. Its compact size and lightweight design make it easy to carry and store.

The Mark 3 delivers a cooling capacity of 5,280 BTU, specifically engineered for targeted cooling in outdoor and off-grid environments.

The power consumption of the Mark 3 varies depending on the operating mode:

  • Rocket Mode: 350–500W
  • Cool Mode: 200–350W
  • Sleep Mode: 150–200W
  • Fan Mode: 12–17W
  • Dry Mode: 350–500W
  • Care Mode: 150–350W
  • Heating Mode: 200–500W

Yes, the Mark 3 has a heating mode. However, it is important to note that this function is designed as a supplementary feature, rather than a primary heating solution. Due to power limitations, the heating mode is only effective when the ambient temperature is above 50°F (10°C).

We recommend first using your primary heating system to raise the room temperature to your desired level, and then using the Mark 3's heating mode to help maintain that temperature.

As with most air conditioners, during cooling operations, the front of the unit releases cold air while the rear expels warm air.

The Mark 3 is designed for personal and small-area cooling (100–150 sq. ft.). Unlike traditional air conditioners that cool entire rooms, it focuses on spot cooling or flexible use in compact spaces—ideal for outdoor or portable setups.

The "Care Mode" uses a PI (Proportional-Integral) algorithm to quickly adjust the compressor speed, helping the outlet air temperature match your desired setting faster. In short, it provides rapid, targeted comfort by focusing on quickly reaching your preferred temperature.

Yes. The Mark 3 includes a 100V–240V AC adapter. When connected to a wall outlet, it can run continuously without a battery.

When plugged into a standard AC wall outlet (100V–240V), the Mark 3 can operate continuously, as long as it is properly maintained and in good working condition.

If running on Mark 3 battery power, the runtime depends on the selected mode and the number of batteries connected. Here's a breakdown of the expected working time:

  • Rocket Mode (350–500W):
  • With one battery (1022Wh): 2–3 hours
  • With two batteries (2044Wh): 4–6 hours

  • Cool Mode (200–350W):
  • With one battery (1022Wh): 3–5 hours
  • With two batteries (2044Wh): 6–10 hours

  • Sleep Mode (150–200W):
  • With one battery (1022Wh): 5–7 hours
  • With two batteries (2044Wh): 10–14 hours

  • Fan Mode (12–17W):
  • With one battery (1022Wh): 60–85 hours
  • With two batteries (2044Wh): 120–170 hours

  • Dry Mode (350–500W):
  • With one battery (1022Wh): 2–3 hours
  • With two batteries (2044Wh): 4–6 hours

  • Care Mode (150–350W):
  • With one battery (1022Wh): 3–7 hours
  • With two batteries (2044Wh): 6–14 hours

  • Heating Mode (200–500W):
  • With one battery (1022Wh): 2–5 hours
  • With two batteries (2044Wh): 4–10 hours

Yes! The Mark 3 app (currently in beta) is available for both iOS and Android:

  • iOS: Download from the Apple App Store.
  • Android: Click on the link to download via Google Drive: https://drive.google.com/file/d/1UPrSLkOEGyyw-pNXhRpLVOrXU17J_kJ7/view?usp=sharing

Whether or not ducts are necessary depends on your environment and setup:

  • In open spaces: Ducts are not required, and you can use the Mark 3 to cool the area effectively without them.
  • In enclosed spaces (such as tents, vans, or boats): We recommend installing the rear dual ducts to enhance cooling efficiency and improve ventilation.

For targeted cooling, you can also install the front air outlet duct in either case to direct airflow more precisely to the desired area.

The battery runtime of the Mark 3 depends on the selected operating mode and how many batteries are connected. Here are the approximate runtimes:

  • Rocket Mode (350–500W)
  • One battery: 2–3 hours
  • Two batteries: 4–6 hours

  • Cool Mode (200–350W)
  • One battery: 3–5 hours
  • Two batteries: 6–10 hours

  • Sleep Mode (150–200W)
  • One battery: 5–7 hours
  • Two batteries: 10–14 hours

  • Fan Mode (12–17W)
  • One battery: 60–85 hours
  • Two batteries: 120–170 hours

  • Dry Mode (350–500W)
  • One battery: 2–3 hours
  • Two batteries: 4–6 hours

  • Care Mode (150–350W)
  • One battery: 3–7 hours
  • Two batteries: 6–14 hours

  • Heat Mode (200–500W)
  • One battery: 2–5 hours
  • Two batteries: 4–10 hours

You can recharge the Mark 3 battery through several methods:

  • Using the included 500W AC adapter (charges to 80% in about 2 hours).
  • Using another Mark 3 battery (via the built-in charging cable).
  • Using solar panels (12–60V input; solar charging cable sold separately).
  • Using a 12V car cigarette lighter (cable sold separately).

The charging speed depends on the power output of your charging source.

With the standard 500W AC adapter, the battery charges to approximately 80% in about 2 hours.

Yes. You can connect the Mark 3 AC unit to the battery using the built-in cable, and then plug the battery into a power source.

This setup allows you to recharge the battery while simultaneously powering the air conditioner.

No. The Mark 3 can also run on third-party power supplies.It requires up to 500W of power and can operate from:

  • 110–240V AC,
  • 48V DC,
  • 12–36V DC (when using a 48V booster).

No. When using multiple batteries chained together, the next battery will automatically take over when the first one is depleted. Therefore, you can sleep soundly without needing to swap batteries manually.

The Mark 3 battery is designed for over 1,000 full charge/discharge cycles at normal temperatures. After 1,000 cycles, it typically retains around 87% of its original capacity.

The Mark 3 is covered by a warranty as outlined in the ZERO BREEZE warranty policy. For full details, please refer to the policy here: Warranty Policy.

Customer Reviews

Based on 34 reviews
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D
Dean R.
Amazing Mark 3!

I love my  mark 3 With the two batteries, perfect for days when I’m stuck at work many miles away and have to rest in my car for five or six hours in between jobs without ruining my cars battery or Engine . It’s perfect for camping as well , Thank you zero breeze for this amazing product !!! 

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C
Chris Ballard
STAYING COOL IN THE TEXAS HEAT!

We decided to go with the Mark 3 and two batteries, the upgrades were just too good to pass up. We use our Zero Breeze for our mobile business, the van A/C alone cannot keep up with the Summer heat here in Texas. The Mark 3 helps keep us cool and comfortable for hours while on job sites. No doubt the heater will also come in handy this Winter. Can't wait to try our Mark 3 out while doing a little camping too!

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N
Natalia E.
Kept Us Cool at Rock Festivals!

We used our Mark3 with a single battery during summer rock festivals in Spain.
It helped us stay inside our Range Rover on some of the hotter days.

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J
Jan Ots
sailboat a/c

I was using zero breeze on my sailboat at night, 90 degree heat in my cape dory 270. I worked pretty good though slow to cool interior. I used a/c plug in as I was hooked up to shore power. I'd definitely helped cooling interior this July, heat index 110. I was traveling from charleston, sc south on icw. When I tried using one battery at night, it only lasted like 5 hrs. Granted 90 inside at start and I put it on 76..Anyway, pretty happy with it and will continue to use it. Also helped w/ humidity inside boat at night. I had vent hoses and condensation line go out a contraption I made out of bottom companionway slat (made out of double cardboard-worked well- with holes for hoses), then regular slats on top to close cabin.

K
Korey M
My 1st portable AC

Bought the Mark 3 to cool my rooftop tent. Rigged it up to pull the hot air through my diesel heater port on my RTT. And the cool air exhaust through a zip in port. Was 90 degrees inside the tent on a hot and humid day. 30 minutes later a cool dry 78. Felt great. Turned the unit off and within a couple mins it was uncomfortable in the tent once again .

J
James
Envy of the entire golf country club

I’ve custom-installed the Mark 3 unit into my golf cart, and the results are outstanding. The streamlined setup delivers a strong flow of cold air directly to our faces and chests—perfect for Oklahoma summers, where temperatures often reach 90–100°F.

Compared to the Mark 2, the Mark 3 performs even better, though the previous model already made a huge difference. My installation uses standard 4” PVC piping, reduced down to 2”. I built a simple platform between the golf bags, and thanks to the Mark 3’s slim profile, full-size bags still fit perfectly.

With the Mark 2, I added a 12V vent fan, but the Mark 3 is powerful enough that it’s no longer necessary. I even use my old Mark 2 battery to charge the Mark 3 battery while it’s running. It’s incredibly convenient.

Because I use a 48V Club Car, I installed a direct-connect plug so I can charge the Mark 3 battery while in use—or even bypass the battery and run it directly off the Club Car’s extended-range pack. The flexibility is fantastic.

Everyone at the club is amazed by how well it works—people are lining up to be my riding partner!

Best of all, the installation is non-invasive: no holes drilled in the roof. I simply use Velcro to secure the upper tube, which runs up the center of the cart and stays completely out of the way. I can charge the battery in place without removing anything from the cart, and I can take the entire unit off in about five minutes. It’s that easy.

This is hands down the best summer upgrade I’ve made to my cart.

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B
Brandon Bellon
Perfect A.C. Setup For A Golf Cart

I designed and installed a custom mounting bracket for my Zero Breeze unit on the rear of my golf cart. An inverter was installed in the engine compartment, while the factory charger was mounted beneath the bracket inside the rear basket. The cooling system is powered by two batteries, which reliably provide enough power for 24 holes of play—even in 100-degree Louisiana heat.

While we occasionally close the doors when stationary, the system is primarily used to deliver consistent airflow during play. Using a temperature gun, I’ve measured air output between 68°F and 70°F from a front-mounted fan. To optimize airflow, I constructed a duct system using 2-inch PVC pipe, which is ceiling-mounted and connected to the fan’s return intake. This setup allows the fan to draw in and distribute cold air efficiently throughout the cabin. The fan itself is powerful enough to provide ample airflow for all passengers.

After each round, I simply plug the factory charger into the batteries. Once the cart is connected to power, both the cart and the cooling system batteries are charged simultaneously. If your using lithium you may not be able to charge simultaneously through factory charger.

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M
Matthew Glander
Camper van Cooling made easy

Added a window adapter for the inlet and exhaust hoses and what a difference in the summer months in Michigan. The Zero Breeze Mk 3 kept the dogs comfortable during the day and both of us plenty cool in the evening and night. Need to make sure you don’t set your thermostat too low or you will need a blanket once the sun sets. Have to go to Florida in August so taking the older Mark 2 also just in case the Mk 3 won’t keep up. We like that our camper van keeps its original stealthy look without a rooftop air dragging down our fuel economy. These small units pack a big bang for cooling. Only improvement I could think of would be be to insulate the intake and exhaust hoses to keep the van even cooler during the day.

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