Portable AC buying guide stresses room size and hose type

NBC Select has published a 2026 guide to portable air conditioners, highlighting models for small rooms, large spaces and lower budgets. The guide matters for renters and homeowners who want room cooling without the more permanent setup of a window air conditioner.

NBC Select says portable units sit on the floor, roll between rooms and vent through a window. Dr. John McKeon, CEO of Allergy Standards, told NBC Select that portable air conditioners usually cost more than window units but are easier to install and are often compact enough to move.

Models highlighted in the guide

NBC Select named the Whynter 14,000 BTU ARC-1230WNH Inverter Portable Air Conditioner as its most powerful pick. The listing says it costs $589.99 at Amazon, cools spaces up to 600 square feet, uses a dual-hose design and includes cooling, fan, dehumidifying and heating modes.

For a lower-cost option, NBC Select listed the Shinco 8,000 Btu Portable Air Conditioner at $209.98 at Amazon and Walmart. The guide says it is rated for rooms up to 200 square feet, uses a single hose, weighs 46 pounds and includes cooling, fan and dehumidifying modes, though NBC Select noted it lacks smart connectivity and that some Amazon reviewers found it loud.

NBC Select’s small-room pick is the Black+Decker 8,500 BTU Portable Air Conditioner, listed at $281.47 at Amazon. The guide says it can cool rooms up to 350 square feet, uses a single hose and includes on-unit and remote controls with timer, sleep and auto modes.

For larger rooms, NBC Select selected the Dreo 12,000 BTU AC515S Portable Air Conditioner, listed at $449.99 at Amazon and Walmart. The guide says the unit cools spaces up to 450 square feet and can be controlled by touchpad, remote or the Dreo Home app, where users can set humidity targets and schedules.

How NBC Select chose the units

NBC Select says it chose models after consulting cooling and appliance experts. Its criteria included a range of BTU ratings and room sizes, washable dust filters, fan and dehumidifier functions, built-in wheels and at least a four-star average customer rating on Amazon.

NBC Select also disclosed that it independently decides what to cover and may earn a commission when readers buy through its links.

What shoppers should check

McKeon told NBC Select that portable air conditioners need to be near both a window and an electrical outlet. He also said owners should drain water as needed and clean filters every couple of weeks to help prevent mold growth that can hurt indoor air quality.

McKeon said some portable ACs add Wi-Fi and app controls, but those models generally cost more. Carl Prouty, a technologist at Abt, told NBC Select that single-hose models are more common, while dual-hose models are often faster, stronger and more energy-efficient.

Prouty also told NBC Select that dual-hose units tend to be louder and more expensive, and owners may need to empty water more often because outside air can create more condensation.

BTU guidance

McKeon told NBC Select that air conditioners typically need about 20 BTUs per square foot. NBC Select listed these average ranges:

• Up to 250 square feet: 5,000 to 6,000 BTUs
• 250 to 350 square feet: 7,000 to 8,000 BTUs
• 350 to 450 square feet: 9,000 to 10,000 BTUs
• 450 to 550 square feet: 12,000 BTUs
• 550 to 700 square feet: 14,000 BTUs

Prouty told NBC Select that sizing matters because an overpowered unit may cool too quickly, dehumidify poorly and cycle on and off too often, while an underpowered unit may run constantly and raise energy costs. He said shoppers should add about 10% more BTUs for sunny rooms, subtract about 10% for rooms with little sun, add 600 BTUs for each person beyond two and add 4,000 BTUs for a kitchen.

This story draws on original reporting from NBC News.