Overview
The Mark 3 is ZERO BREEZE's latest portable air conditioner, boasting a cooling capacity of 5,280 BTU. Weighing just under 22 pounds, it features a multi-function climate control system that allows you to set and maintain temperatures between 61°F and 88°F, suitable for spaces ranging from 100 to 150 square feet. Whether cam
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Batteries didn't last as noted in the manuals, even in night mode, at the lowest fan speed, and while cooling from 84 to 79.
Z
Zilvinas · September 19, 2026
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!
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Merl · July 22, 2026
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.