As the desert sun sets or the humidity lingers, the air doesn’t cool off. Temperatures often stay above 80°F even after dark, making it nearly impossible to catch a break from the heat, especially when you’re up high in your RTT.
With most RTTs offering only a few small windows and relying on natural breezes, you’re left to sweat it out when the air stands still. Even if you're parked in a scenic spot, without proper airflow, it feels like you're trapped in a sweltering box.
Tossing and turning to find a cooler spot isn't just uncomfortable—it ruins the sense of adventure you’ve been craving. The lack of sleep leaves you feeling drained, taking away the joy of your outdoor experience and putting a damper on your next day’s explorations.
For RTT enthusiasts, these discomforts can undermine the very essence of the adventure. That’s why staying cool, comfortable, and well-rested isn’t just a luxury—it’s essential to make the most of your time in nature. The Mark 3 portable AC, designed for off-grid adventurers, keeps you cool during those hot, restless nights in your rooftop tent.
Runs on its dedicated battery or your portable power station (48V output), so no campsite hookups are needed.
Compact enough to fit in your trunk, with quick-attach ducts for fast setup.
Directs cool air exactly where you sleep, providing targeted comfort all night long.
Operates with a gentle 46dB hum, allowing you to sleep peacefully.
For Mark 3 Basic (AC Only), the package includes the following:
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:
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 noise level varies depending on the mode:
The Mark 3 features a dual-duct system, which uses two separate air pathways—one for intake and one for exhaust—located at the back of the unit. This design offers several benefits that improve cooling efficiency:
As a result, the dual-duct system provides better cooling performance and enhanced energy efficiency compared to single-duct portable air conditioners.
The installation of ducts depends on your cooling setup:
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:
You can recharge the Mark 3 battery through several methods:
No. The Mark 3 can also run on third-party power supplies.It requires up to 500W of power and can operate from:
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.