Unlike the conventional fan you have seen before, Zero Breeze Mark 2 is a real portable Air Conditioner with the patented compressor that can reduce the ambient temperature by 30ºF/16.7°C. After five years of research and development, we manage to shrink the giant AC compressor into a COKE CAN size compressor, so Zero Breeze can be super compact, lightweight, and easy to carry around. Zero Breeze Mark 2 is the only real air conditioner on the market that runs on a battery. It allows the air conditioning life to be no longer confined to the house, Unlike the traditional portable air conditioner, Mark 2 has a real ac compressor built-in, Mark 2 is not limited by the power supply, free to use anywhere, such as tents, camping air conditioning, the RV,in-car air conditioning, outdoor sports, boats, small air-crafts, any place you need.

Zero Breeze is a Revolutionary Cordless Battery Portable Air Conditioner, with Just press the button it allows you to enjoy the cool air anywhere.

Some of our costumers have used their ZERO Breeze in camping tents, boats, trucks, RVs, Small airplanes... https://www.facebook.com/groups/1998198280289462/

There are more ways to use our products, we are always looking for new ways to use our AC, so share your Zero Breeze stories with us.

To learn more about our products please check the FAQ under the products. https://tredless.com/collections/zerobreeze/products/zero-breeze-mark-2-portable-air-conditioner.

The outer diameter of the intake and exhaust hoses is 11.1cm,
The inner diameter of the intake and exhaust hoses is 10 cm.

Please refer to the pictures in the Manual, the heat energy is extracted from the room by the exhaust hose to outside venting hoses.  Zero Breeze Mark 2 uses a dual hose venting heat system. One hose takes in the fresh air, and then the air passes through the condenser and takes its heat away through another hose. The best way to cool down space is to connect the two hoses and separate them slightly out of the window or outside the door.

If the hose we provide isn’t long enough, you should be able to find a hose with the same diameter online for the length you want

https://www.amazon.com/AC-Infinity-Heavy-Duty-Four-Layer-Ventilation/dp/B071LHCFZ8?fbclid=IwAR2vdVe6L2XALooG2sXY8MZHqLBg_1qCFbdS_CoEO-rhPX2Y4hdUeQ36Gbc

Inside Zero Breeze Mark II, we have integrated a revolutionary dual hose system to draw in fresh outdoor air and output the hot exhaust air through a separate hose. Dual Hose allows an intake hose to be used to circulate fresh air inside so that there is no negative pressure in the room also this structure will provide a greater unit performance efficiency and maximized output cooling power.

It is closed, so there is no need to add refrigerant. The feedback data of the engineer will not require any adjustment for normal operation for at least 4 years, unless the air conditioner fails, please send it to our after-sales center for processing.

The ideal cooling area for Zero Breeze Mark 2 is 7' x 7' (49 sq ft.). however it will help make larger spaces more comfortable and/or cool a smaller area WITHIN a larger space.  But the cooling effects and perceived performance of the Zero Breeze will indeed become less obvious in larger spaces.  Some folks also purchase multiple units to cool larger spaces.

We know that under the average sun exposure, the temperature inside the car will rise dramatically, because the heat generated by sunlight is 283.6 BTU/sq ft, and the area of ​25 sq ft is about 7090 BTU, which will far exceed Zero Breeze Mark 2 capability of 2300 BTU. That’s why the average cooling capacity of a car air conditioner is far more than 10,000 BTU/h.

Therefore, using the Zero Breeze Mark 2 air conditioner in the vehicle during the day is difficult to cool the whole space dramatically, but you can feel comfortable at location closer to the machine, especially near the cold air vent. It is recommended to use Mark 2 after the space has been cooled by the vehicle air conditioner to keep the cool temperature, which is a good choice for temporary rest or cooling the pet.

But in the shade, especially at night, the situation will be much better, because there is no external source of heat, which is a very good cooling option for campers or trucks.

Zero Breeze Mark 2 uses dual hose venting heat system. One hose takes in fresh air, and then the air passes through the condenser and takes its heat away through another hose. The best way to cool down a space is to connect the two hoses and separate them slightly out of the window or outside the door.

Zero Breeze Mark 2 turns gaseous water in the air into liquid. It uses gravity to collect and drain the water it generates.  If your Mark 2 is not positioned in a way that allows you to take advantage of gravity, simply tilt/raise and tilt the unit to drain the water.

You should also consider connecting the water tube that comes with your Zero Breeze; use it to drain the water into a receptacle or directly into the water or on the ground around you.

That warning is a low voltage code due he system detecting voltage (being supplied) is below 18.6V.  
Mark 2 AC activate protective mode automatically and shuts down to protect internal circuit when input voltage is below 18.6V.  Mark II requires stable voltage and at least 250W power

Mark 2 can't set a temperature for surroundings. The number indicates the blowing air temperature. 

This feature will be valid on Mark A/C in the future.

Zero Breeze Mark 2 supports the use of 24v battery or power adapter to access 110-240V power supply. It’s maximum power is about 240W, and the corresponding maximum current is about 10A. We know you may want to power the air conditioner directly through the cigarette lighter. But you need to find out if your cigarette lighter outputs 24V and can provide enough power (240W). Usually the cigarette lighter in the car outputs 12V, and you need a 12V to 24V converter. Considering the conversion efficiency of the converter, at least 250W power (close to 21A peak current) is required from the cigarette lighter. If this is not the case, it is not recommended to use the cigarette lighter to power the Mark 2 as this will damage your cigarette lighter circuit.

If you have a inverter supply system with more than 250W outputs 110V/240V, you can use the adapter comes with Mark 2 to make the air conditioner work. If not, it is recommended that you use the Zero Breeze Mark 2 battery to power the air conditioner. It normally can work for 3-5 hours in cool mode (more than 5 hours in sleep mode).

You can charge the Mark 2 battery through the 12V-24V converter (https://tredless.com/collections/zerobreeze/products/12v-to-24v-inverter-for-mark-2-battery) connected to the cigarette lighter port.

It should be NOTED that Mark 2 battery does not support working while charging. If you want to power the machine while charging the battery, you need to buy an extra battery and an extra power adapter.

It takes 4-5 hours to charge up the batteries. When all lights stop flashing, indicating that the charge is full. You can use it for 4-5 hours straight.

No, Mark 2 can only be operated with battery or operated with the power adapter. But you cannot run it while charging.

Only the Mark 2 Battery can be charged with a car power adapter. You can purchase the 12V to 24V DC-DC car power adapter on our website sparely

https://tredless.com/collections/zerobreeze/products/12v-to-24v-inverter-for-mark-2-battery

It is not recommended to use the adapter to power the MARK 2 air conditioner directly, as it may damage your power source once it isn't able to supply continuous and sufficient power. There are two functional connectors, one is for a 12V car cigarette lighter interface, and the other is for wiring directly to your 12V battery positive and negative electrodes.

The air conditioner itself does not support solar charging, solar energy can only charge the battery.

You can use the ac plugged in as long as you want, Or you can use it with portable battery for 5 hours, And it takes 4-5 hours to fully charge a battery, You can also charge the battery with solar panels, in-car charging. Or your own battery supply

Inside Zero Breeze Mark II, we have integrated a revolutionary dual hose system to draw in fresh outdoor air and output the hot exhaust air through a separate hose. Dual Hose allows an intake hose to be used to circulate fresh air inside so that there is no negative pressure in the room also this structure will provide a greater unit performance efficiency and maximized output cooling power.

The BTU is 2300, it covers about 50 SQFT,

From the principle of energy conservation, high power requires more power consumption. the energy consumption of small air conditioners is 3-4 EER and 450W for 5000BTU. If we use our current 840Wh battery, it can only work for more than 1 hour. Besides, the 5000BTU cooling capacity will make it bulky and cumbersome, and it will require a larger capacity battery. The battery will be bulky and lose the essence of portability.
Also, we don't want to use a high voltage for safety concerns. 24v will be safer. If the power consumption is 450w, the current will be close to 20A at 24v, which will bring hidden dangers to the users.
The space that needs to be cooled in outdoors is not too big. The 2300 BTU is enough for individuals, families of three, and small trailers, and the battery weight and input are suitable and safe.

First of all, the cost of conventional compressor refrigeration equipment is not low, and the cost of micro compressors is even higher.
The experiences of the outdoor portable compressors are almost blank. There are some compressors for communication equipment, but those are not very environmentally friendly, and the noise is very loud. There are also some compressors for small refrigerators, but due to different uses, energy and working conditions, they also can not meet the needs of outdoor air conditioning refrigeration.
We need to develop a dedicated compressor. We were constantly optimizing for many relative contradictions such as volume, speed, displacement, power consumption, compression ratio, and strive for more effective performance. The compressor is very sophisticated equipment. The production of compressors requires specialized manufacturing equipment and specialized laboratories. We hired senior doctors of compressors to join us and invest a lot of human resources and funds. 


We continuously combined the scene experiment test on the compressor. Finally, the 2300 BTU 24 inverter compressor came to the world.

When we first started creating outdoor cooling equipment, the use of micro compressors would be the best solution.
Although the traditional air-conditioning compressor is cost-effective, it is designed for large space and large equipment, without considering weight, size, too bulky when moving, and cannot be powered by batteries.


THERMOELECTRIC COOLING has the advantages of simple structure, simple installation, and most of the equipment is used for heat dissipation, but the energy efficiency ratio is too low and the energy consumption is too high. For a 2300BTU cooling capacity, it requires power consumption of up to 1300W, while the Mark 2 consumes less than a quarter of it.
THE BLOCK HEADING, the least technology-dependent solution, relies on ice to cool down. Its cooling effect is very limited, and it is very bulky, and the melted water will cause a lot of troubles.


EVAPORATIVE COOLING, the solution with the worst effect by cooling water by evaporation. It can also make you feel worse when you are in a humid environment.