Zero Breeze Mark 3 Portable AC vs EcoFlow Wave 3 Portable Air Conditioner

The EcoFlow Wave 3 is the stronger all-round machine: more cooling output, a heat pump for heating, sleep mode and a larger 1,024Wh LiFePO4 battery. The Zero Breeze Mark 3 is lighter at 12 lb, quieter at 46dB, and its 7-hour battery and IPX4 rating suit tight spaces like sailboat cabins and RV bedrooms. Owners praise the Mark 3's cooling in small rooms and its support, but some report hoses that fall off and one leak. Pick the Wave 3 for heating and bigger rooms; pick the Mark 3 for weight and quiet.

• Choose the Zero Breeze Mark 3 if you need the lightest, quietest unit for a small cabin, tent or RV bedroom and want a battery included.
• Choose the EcoFlow Wave 3 if you want heating as well as cooling, more BTU, and a bigger LiFePO4 battery for off-grid use.