For Van
Enjoy a cooler and heater wherever you go without the need of any permanent installation.
Portable, Powerful, Practical
Portable, Powerful, Practical
Mark 3 Portable Air Conditioner
Tiny Yet Mighty
The Mark 3 is our latest portable air conditioner equipped with 5280 BTU cooling capacity. It weighs just under 22 lbs and has a climate control feature that allows you to set and maintain the temperature to as low as 61°F and as warm as 88°F for spaces between 100-150 ft².
Ultimate Energy Saving
Mark 3 consumes only 25% of the power of traditional air conditioners.
Unparalleled Portability
Among all ~5000 BTU air conditioners, the Mark 3 is by far the most portable air conditioner in the world.
Keep Cool Wherever You Go
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For Van
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For Trailer
For Trailer
It’s compact design allows you to slot it into a cabinet or any small space to keep it out of sight while reaping all the benefits.
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For Semi-Truck
For Semi-Truck
You no longer need to worry about costly fuel consumption while you stay cool.
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For Camping
For Camping
You will never be too cold or too hot while you camp ever again.
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For space between 100-150 ft²
For space between 100-150 ft²
You can get creative and use the Mark 3 in scenarios we haven’t even though of yet. The world if your oyster!
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.
7 Modes Tailored for Every Outdoor Adventure!
Rocket Mode
Maximum power! This mode is perfect for cooling down your space in the beginning. Power: 350-500W | Single Battery Runtime: 2-3 Hrs
Cool Mode
This is the most balanced mode. It’s one step below the Rocket Mode in cooling capacity but consumes less power. Power: 200-350W | Single Battery Runtime: 3-5 Hrs
Sleep Mode
This is our quietest mode and is perfect for sleeping. It’s one step below the Cool Mode in cooling capacity but consumes even less power. Power: 150-200W | Single Battery Runtime: 5-7 Hrs
Fan Mode
If you want a refreshing breeze without wanting to spend too much energy, we’ve got you covered with the good ol’ Fan Mode. Power: 12-17W | Single Battery Runtime: 60-85 Hrs
Dry Mode
Eliminate excess humidity. Power: 350-500W | Single Battery Runtime: 2-3 Hrs
Care Mode
Keeps the air flow at the outlet at a constant temperature. Power: 150-350W | Single Battery Runtime: 3-7 Hrs
Heating Mode
Yes you heard it right, the Mark 3 is also a heater. Increase the ambient temperature by up to 20° F. Power: 200-500W | Single Battery Runtime: 2-5 Hrs Note: Due to the nature of heat pump technology and the power capacity of the Mark 3, the heating mode is only effective in ambient temperatures above 40°F (10°C).
Unleash Efficient Climate Control
Portable Cooling Revolution
Say Goodbye to Condensation Hassles
Remote Control
The Dual Hose venting system is simply superior in efficiency than the Single Hose venting system and we want to keep it this way.
ZERO BREEZE's Innovative ultra-compact compressor for peak performance, rapid cooling, and unmatched portability.
The condensation drains automatically with the help of a sensor and pump.
Command your Mark 3 effortlessly within a 33 ft (10m) range, even through a wall.
Features of Mark 3 Battery
Charging While Discharging
Connect multiple batteries to double, triple or even quadruple your battery life!
Upgraded Power Supply System
It's not just an air conditioner, it's a 48V cooling system.
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
As seen on
Customer Reviews
Based on 10 reviews
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J
I've played with this thing for a few days now and just couldn't be happier. I used it last night in the SUV while I was inbetween hubs (truck driver) and ran the heat. It was 37°F outside and I set the temp for 74°F. Within a minute or two it was rolling out intense heat and had the entire SUV comfortable. Slept like a baby.
Looking equally forward to sleeping in the summertime which will be life changing for me thanks to you all!
All the best!
Jason
Hello Jason, we especially appreciate you sharing your experience as a truck driver – that's exactly the kind of real-world benefit we aim for! Would you be willing to share a photo or two of your setup in your SUV? We think seeing it in action might really help other UPS drivers understand how beneficial our product can be for them on the road. Of course, this is entirely optional.Thanks again for your amazing review and for being a valued customer! We wish you all the best and look forward to helping you stay comfortable in the summer too.
J
I'm a truck driver, and my truck doesn't have an APU. In the summer, it gets unbearably hot inside—those small fans just blow around hot air, making things worse. I can't leave the engine idling, not only because it's against regulations, but also because it wears out the engine and leads to high maintenance costs down the road.
I knew the Mark 3 wasn't cheap, but when I compared it to the hassle of overheating in the truck, spending money on an APU, risking engine damage or violating regulations by idling, I thought it was worth giving a shot. And after using it, I'm really glad I did!
The Mark 3 has been a game changer. It cools down the truck without any noise, and the best part is, it doesn't need any installation. Just set up the hoses, and you're good to go. I've used it for two nights now, and I can actually get some good rest—no more sweating through the night or feeling sluggish in the morning.
Definitely recommend this for anyone in a similar situation. It's worth every penny if you need a portable, quiet, and efficient cooling solution on the road!
D
hoping warm temps come soon!
Appreciate the feedback. We're here if you need any setup help!
M
This is awesome. Puts out a lot of cold air and is easy to move around. Battery get here next week so I have been using a small 120v inverter so I can use it on my boat.
It's wonderful that the Mark 3 is working out for you! If you'd like any help optimizing your setup in your boat for more convenient use, we're here to assist.
L
I have not received fulfillment. I was under the impression that I would be getting my Mark3 with the two batteries in March.
Hi Lawrence,
We sincerely apologize for the delay in delivering your Mark 3 and batteries. We encountered unforeseen production and logistics delays with this batch. Our team is actively working to expedite fulfillment. We'll contact you directly to provide an update and clarify your expected delivery timeline. Thank you for your patience and understanding—we’re committed to making this right.