What is included in the Mark 3 package?

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

Is a 100V-240V AC power adapter included in the Mark 3 package?

Yes, it is included in the Mark 3 package.

What are the dimensions and weight of the Mark 3?

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.

How powerful is the Mark 3?

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

What is the power consumption of the Mark 3?

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

Can the Mark 3 also heat the air?

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.

Does the Mark 3 cool an entire room?

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.

Can the Mark 3 operate without a battery when plugged in?

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

How long can I run the Mark 3?

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

Is there an app for the Mark 3?

Yes! The Mark 3 app (currently in beta) is available for both iOS and Android: iOS : Download from the Apple App Store. Android : Download from the Google Play Store.

Is it necessary to install ducts?

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.

How long does the Mark 3 battery last?

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

How do I recharge the Mark 3 battery?

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).

How fast can the Mark 3 battery recharge?

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.

Can I use the battery to power the Mark 3 while it's recharging?

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.

Can the Mark 3 only be powered by the Mark 3 battery?

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).

Will I need to swap batteries manually if one runs out during the night?

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.

What is the lifespan of the Mark 3 battery?

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.

What is the warranty on the Mark 3?

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

Buy ZERO BREEZE Mark 3-The ZERO BREEZE Store

Name: ZERO BREEZE Mark 3 AC
Brand: ZERO BREEZE®
SKU: Z30+WV-S
Price: 2589.0 USD
Availability: InStock

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	Mark 3 (Carry-Size Battery A/C)	Big-Block Battery A/C 50-lb Class	Traditional Portable A/C + Generator
Cooling Power	5,280 BTU	≈ 5,000 BTU	≈ 5,000 BTU
Main-Unit Weight	22 lb / 10 kg	33.7 lb / 15.3 kg 1.5× heavier	58.2 lb / 26.3 kg 2.6× heavier
Main-Unit Volume	1,525 in³ (≈ 25 L)	3,150 in³ (≈ 52 L)	3,251 in³ (≈ 53 L)
Power-Source Weight (≈ 1 kWh)	14 lb / 6.4 kg	21.4 lb / 9.7 kg	28.7 lb / 13 kg
Total to Lift Every Night	36 lb / 16 kg	55 lb / 25 kg	86 lb / 39 kg
Set-Up Time	Plug & cool in 60 s	Two-hand carry • manual drain	Unload gen • fuel • mount A/C
Sleep Mode Noise	46 dB	55 dB+	≥ 65 dB
Cabin Foot-Print	Like a 25 L travel duffel	Carry-on suitcase	Two bulky boxes + fuel can
Price (unit + power)	$1,299 – 1,899	$1,999+	$700 – 1,000

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.

Great Battery

I wanted to make sure I could run my Mark 3 AC all night, so this is 3 of 3 batteries. Along with the Solar, the DC to DC charger, and shore power I expect to have power to run my Mark 3 for as long as needed.

Love it cant wait to actually use it A+ rating

Wish it cooled more but its good enough. Long battery life with the two pack. Product is good quality.

Remarkable

Purchased our ZB3 and battery pack to create “Dog Mode” canine comfort when we park our Jeep. But one of the AC units at home gave up the ghost during a heatwave, so we enlisted our little friend for a much bigger job: cool 600 square feet of heat soaked upstairs living area. We rigged a hot side vent thru a window and put it to work. It took awhile. But the remarkable ZB workhorse did the job!

Hi Merl, we're thrilled to hear how well your ZERO BREEZE Mark 3 AC is working for you and your furry friend! If you can share some setup photos here , it will be much appreciated!

I read some reviews that this unit was like your car A/C and could cool a 6x8 tent with ease but after camping with it I was not impressed at all for the money we spent. It was 80 degrees at night and it couldn’t cool our tent to be comfortable at night. We ended up going to a walmart and purchasing a $400 portable AC unit that performed much better.

Hi Aaron, we are sorry to hear the Mark 3 didn't meet your expectations. To assist you and help other campers understand the unit's performance, we’d like to highlight a few essentials:
The Off-Grid Edge: The Mark 3 is a specialized, battery-powered solution designed specifically for camping where traditional power is unavailable, offering high efficiency and portability.
Dual-Hose Venting: For maximum cooling, it is critical to install both rear hoses and route them completely outside. This prevents heat from dumping back into your tent and avoids creating negative pressure that pulls in warm outside air.

We have many users who enjoy a chilly night's sleep in similar setups. Could you share a photo of your current setup? We want to ensure your unit is performing at its peak. If we cannot resolve this, please remember we offer a 30-day return policy

The vents are falling apart right out of the box. I have made several attempts to contact zerobreeze customer service, with no success. Horrible customer service

Perfect Service!

We used a Mark 3 while traveling across Africa. No matter how hot or humid it was, we slept perfectly. Unfortunately, the unit eventually stopped cooling... but we had a reliable contact person in Ruby throughout the trip... ultimately, a new unit had to be delivered... and the support for the replacement was excellent, too! Now we will be using the new air conditioner as we continue our journey through Southern Africa.

love the zero breeze a/c

this thing works great the only issue was with trying to connect the inlet and exhaust air hoses. you should have made a little clip to lock them in place so the dont fall off during the nite. unit doesnt work well when the inlet hose comes off from the unit. other than that it works great air is 59deg coming out. the 2 battery pack is a must or you will only enjoy the cold air for about 3 or 4 hrs. you will also need a 2000 watt inverter and a 300ah lithium battery to keep the unit running the entire nite and into the early morning. i camp alot in my gmc yukon and it keeps me cool on those real hot nites so i dont have to run my truck all nite. you will need to make a window vent panel for one of your vehicles window to vent the unit and drill a hole in your floor board to drain the condensation.

Hi Joseph, thank you for sharing your experience! We’re thrilled the Mark 3 is keeping you cool. To install the hose, please extend the front end first, then screw it into the adapter counterclockwise. Make sure to turn it several times to ensure it’s secure. If you could share some photos of your setup, it would be a huge help to other campers!

1 2 3

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

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 AC

Highlights

Tech Specs

ZERO BREEZE Mark 3 Air Conditioner × 1

50V DC Power Adapter for Wall Outlet × 1

2.4G Wireless Remote Controller × 1

Drainage Pipe × 1

Front Outlet Duct × 1
Φ4.33″ (11 cm)

Front Inlet Duct / Rear Inlet Duct × 1
Φ5.12″ (13 cm)

Rear Outlet Duct × 1
Φ5.91″ (15 cm)

Front Inlet Adapter × 1

Front Outlet Adapter × 1

Rear Inlet Adapter × 1

Rear Outlet Adapter × 1

ZERO BREEZE Mark 3 User Manual × 1

ZERO BREEZE Mark 3. Innovation. Inside and Out.

Beat 100°F Nights with
a 22-lb AC.

Keep Cool Wherever You Go

Sleep cool without idling or an APU

Off‑grid AC for compact trailers

Portable cooling for rooftop tents

Flexible Comfort at Anchor

Find the Perfect Setup for Your Space

5,280BTU

22lb

46dB

How Mark 3 Compares in the Real World

Thermostat Setting

Innovation Made for Outdoor Cooling

7 Modes Tailored for Your Outdoor Adventure

Ducts Installation

Reliable Power for Every Outdoor Moment

Charging While
Discharging

Upgraded Power Supply System

Don't Just Take Our Word

What Our Customers Say

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