Zero Breeze Mark 3 Portable AC vs Waykar 4500 BTU Portable Air Conditioner

Buy the Zero Breeze Mark 3 if you need to run off a battery, a 12V/48V DC bank or a solar setup, or if weight matters. It weighs 12 lb, ships with two batteries rated for about 7 hours, and draws far less power than a compressor unit. Buy the Waykar if you will always have 110V AC from a generator or shore power and want stronger cooling plus a dehumidifier for a tent or RV. The Waykar is a conventional 400W compressor unit at 4,500 BTU and 52 dBA; the Mark 3 is a 5,280 BTU DC unit at 46 dBA that reviewers say cools small cabins and RV bedrooms well, though some report hoses working loose and one unit leaking.

• Choose the Zero Breeze Mark 3 if you camp or sail off-grid and need battery or DC power, low weight and quiet running.
• Choose the Waykar if you have a generator or shore hookup and want a dehumidifier, remote control and a simple 110V setup.