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Buying guide · 12 min read · Updated 2026-11-07

Best Portable Air Conditioners (2026)

Six portable air conditioners compared on DOE SACC capacity, not just marketing BTU, with notes on hoses, drainage, noise and the room each one really fits.

James MillerBy James MillerLead Machine Editor6 machines comparedSpec-sheet verified
Best Portable Air Conditioners

At a glance

Our top picks

Side by side

Spec comparison

MachineMarketing capacityDOE capacityCoverageModesSize
BLACK+DECKER 14,000 BTU Smart Portable AC, 10,200 SACCBest OverallBLACK+DECKER 14,000 BTU Smart Portable AC, 10,200 SACC14,000 BTU ASHRAE10,200 BTU SACCUp to 700 sq ftCool, dehumidify, fan16.5 x 14.06 x 27.09 in
BLACK+DECKER 12,000 BTU Smart Portable AC, 8,350 SACCBest Mid-Size PickBLACK+DECKER 12,000 BTU Smart Portable AC, 8,350 SACC12,000 BTU ASHRAE8,350 BTU SACCUp to 550 sq ftCool, dehumidify, fan16.5 x 14.06 x 27.09 in
BLACK+DECKER 10,000 BTU Portable AC, 5,500 SACCBest Value Small RoomBLACK+DECKER 10,000 BTU Portable AC, 5,500 SACC10,000 BTU ASHRAE5,550 BTU SACCUp to 450 sq ftCool, dehumidify, fan15.3 x 14 x 24.8 in
Midea 10,000 BTU ASHRAE Portable AC, 7,100 SACC, 300 sq ftBest Compact Brand PickMidea 10,000 BTU ASHRAE Portable AC, 7,100 SACC, 300 sq ft10,000 BTU ASHRAE7,100 BTU SACCUp to 300 sq ftCool, dehumidify, fann/a
AGTANA 14,000 BTU Portable AC, 10,000 SACC, Self-EvaporatingBest Self-Evaporating PickAGTANA 14,000 BTU Portable AC, 10,000 SACC, Self-Evaporating14,000 BTU ASHRAE10,000 BTU SACCUp to 700 sq ftCool, fan, dehumidifyn/a
16,000 BTU Portable AC with Wi-Fi and 6-in-1 ModesBest Large-Room Features16,000 BTU Portable AC with Wi-Fi and 6-in-1 Modes16,000 BTUn/aUp to 700 sq ftCool, dehumidify, fan, sleep, timer, swingn/a

A portable air conditioner stands on the floor, pulls room air across a coil and pushes the heat outside through a hose in a window or vent. It suits renters, rooms with unusual windows and anyone who cannot mount a heavy box in a sash.

The catch is the label. Marketing BTU numbers are inflated compared with the DOE rating, and the gap between them is the whole story. Read the SACC figure first, then compare the hose design, the drainage and the noise.

Before you buy

6 Criteria to Look For Before Buying a Portable Air Conditioner

  1. 01

    Read SACC, not the box BTU

    SACC is the DOE rating that adjusts capacity for real operating conditions, so it is always lower than the marketing ASHRAE number. The BLACK+DECKER 14,000 BTU is 10,200 SACC, the Midea 10,000 BTU is 7,100 SACC and the BLACK+DECKER 10,000 BTU is only 5,550 SACC. Two units with the same box number can differ by 1,500 BTU in real cooling.

  2. 02

    Match SACC to the room

    A starting rule is about 20 BTU per square foot, but use SACC in that calculation. 5,550 SACC suits roughly 250 square feet, 7,100 suits 300 to 350, 8,350 suits about 400 and 10,200 suits 500. Makers often claim coverage far above that, so trust the SACC number.

  3. 03

    Hose design and infiltration

    A single-hose unit pulls room air to cool its condenser and sends it outside, which draws warm air into the room through gaps. Dual-hose units avoid that and usually rate higher SACC at the same size. The listings here do not state hose count, so confirm it before you buy. Insulating the exhaust hose with a sleeve cuts the heat it radiates back into the room.

  4. 04

    Drainage method

    Portables collect condensate. Some, like the AGTANA, evaporate most of it, while others need you to empty a tank or run a drain hose. In humid weather even self-evaporating units may need draining, so plan a drain path.

  5. 05

    Noise in the room

    A portable's compressor stands in your room, so it is louder than a window unit. Check the dB figures where they are given and use sleep mode at night. If noise matters most, a window or mini split cools more quietly.

  6. 06

    Window kit fit

    The hose reaches the outside through a window panel that must seal the gap. A poor seal lets hot air back in and undoes the cooling. Measure your window and check the kit, and add foam if needed.

Detailed reviews

The 6 best portable air conditioners, explained

01
BLACK+DECKER 14,000 BTU Smart Portable AC, 10,200 SACC
14,000 BTU ASHRAE10,200 BTU SACCUp to 700 sq ftSmart app
Check price on Amazon
Best for: A large bedroom or apartment room up to 700 square feet where a window unit will not fit.

BLACK+DECKER lists this unit at 14,000 BTU on the marketing ASHRAE scale and 10,200 BTU on the DOE SACC scale, and the second number is the honest one. SACC adjusts the capacity for real operating conditions, which is why it is about 70 percent of the marketing figure. That makes it a strong cooler for a large bedroom or small apartment.

It is a three-in-one unit, with cooling, dehumidifying and fan modes, and a smart app. At 27 inches tall it takes up floor space, and the hose still must run to a window, so the install is a vent kit, not a mounting job. Against the 12,000 BTU sibling it adds roughly 1,850 BTU SACC of real capacity, and against the Midea 10,000 BTU it gives you far more room coverage.

Ownership is the portable routine. Empty or drain the condensate according to the manual, wash the filter every few weeks and store the hose in a loose coil in winter. Noise is the cost, because the compressor sits inside the room with you. Check the length of the exhaust hose against the distance to your window, because a stretched or kinked hose loses capacity and runs hotter.

What works

  • 10,200 BTU SACC is a real capacity figure
  • Covers up to 700 square feet
  • Cool, dehumidify and fan modes
  • Smart app control

Watch out for

  • Compressor noise is in the room with you
  • Takes up floor space at 27 inches tall
  • Hose and vent kit must be sealed well

Spec sheet

Marketing capacity
14,000 BTU ASHRAE
DOE capacity
10,200 BTU SACC
Coverage
Up to 700 sq ft
Modes
Cool, dehumidify, fan
Size
16.5 x 14.06 x 27.09 in
02
BLACK+DECKER 12,000 BTU Smart Portable AC, 8,350 SACC
12,000 BTU ASHRAE8,350 BTU SACCUp to 550 sq ftSmart app
Check price on Amazon
Best for: A bedroom or living room up to 550 square feet.

The 12,000 BTU model is the sensible size for a bedroom or a medium living room, with 8,350 BTU SACC and coverage up to 550 square feet. It has the same chassis as the 14,000 BTU unit, so the footprint does not shrink, but the cooling and the cost step down.

The listing mentions 8,000 BTU SACC in the headline and 8,350 in the feature text, so read the exact number on the unit label if it matters. Compared with the BLACK+DECKER 10,000 BTU it has about 2,850 more SACC, a large jump, and compared with the 14,000 BTU it saves a little cost at the price of capacity.

Upkeep is the usual condensate care, filter washing and checking the hose seal. If you plan to run it daily through a hot summer, size up, because a unit that runs flat out never catches a hot room.

What works

  • 8,350 BTU SACC at a mid-range size
  • Smart app control
  • Cool, dehumidify and fan modes
  • Covers up to 550 square feet

Watch out for

  • Same large footprint as the 14,000 BTU model
  • Headline and feature text differ on SACC
  • Compressor noise in the room

Spec sheet

Marketing capacity
12,000 BTU ASHRAE
DOE capacity
8,350 BTU SACC
Coverage
Up to 550 sq ft
Modes
Cool, dehumidify, fan
Size
16.5 x 14.06 x 27.09 in
03
BLACK+DECKER 10,000 BTU Portable AC, 5,500 SACC
10,000 BTU ASHRAE5,500 BTU SACCUp to 450 sq ftFollow Me remote
Check price on Amazon
Best for: A small bedroom or office of up to about 250 square feet.

This is a smaller chassis at 24.8 inches tall, with a Follow Me remote that senses temperature at the remote, a 5,550 BTU SACC rating and coverage up to 450 square feet. The 10,000 number on the box is the marketing one, and the SACC figure shows it is a small-bedroom unit.

The tradeoff is that the coverage claim is generous relative to the SACC figure. At 5,550 BTU, a room much over 250 square feet will stay warm on a hot afternoon, whatever the box says. Against the 9,000 BTU sibling it adds a little capacity and coverage, and against the Midea 10,000 BTU it has less real cooling.

Ownership is simple: manage the condensate, wash the filter and seal the window kit. It is a decent unit for a dorm, a small office or a bedroom with moderate sun. If the room is a bedroom with a south-facing window, step up a size instead of relying on the coverage number printed on the box.

What works

  • Smaller 24.8 inch chassis
  • Follow Me remote senses at your location
  • Cool, dehumidify and fan modes
  • Lower cost tier than the large models

Watch out for

  • 5,550 BTU SACC is modest for the 450 square foot claim
  • Compressor noise in the room
  • Window kit seal needs care

Spec sheet

Marketing capacity
10,000 BTU ASHRAE
DOE capacity
5,550 BTU SACC
Coverage
Up to 450 sq ft
Modes
Cool, dehumidify, fan
Size
15.3 x 14 x 24.8 in
04
Midea 10,000 BTU ASHRAE Portable AC, 7,100 SACC, 300 sq ft
10,000 BTU ASHRAE7,100 BTU SACCUp to 300 sq ftSmartHome app
Check price on Amazon
Best for: A bedroom of 250 to 300 square feet where the SACC figure should match the claim.

Midea states its capacity honestly: 10,000 BTU ASHRAE and 7,100 BTU SACC, with a coverage of up to 300 square feet. The 7,100 SACC figure is higher than the BLACK+DECKER 10,000 BTU's 5,550, so the same marketing number hides a real difference.

That makes it the better small-room unit on actual cooling, with the SmartHome app letting you set modes and timers from a phone. It is also a better match for its coverage claim than the BLACK+DECKER 10,000 BTU, where the SACC and coverage do not line up as well.

Ownership is the portable routine of condensate care, filter washing and a sealed window kit. Because it is a recognized brand, parts and support are easier than for the unbranded large units.

What works

  • 7,100 BTU SACC beats other 10,000 BTU units
  • Coverage claim matches the capacity
  • SmartHome app and remote
  • Recognized brand with support

Watch out for

  • Smaller coverage than the 14,000 BTU units
  • Compressor noise in the room
  • Needs a window kit installed well

Spec sheet

Marketing capacity
10,000 BTU ASHRAE
DOE capacity
7,100 BTU SACC
Coverage
Up to 300 sq ft
Control
SmartHome app and remote
Modes
Cool, dehumidify, fan
05
AGTANA 14,000 BTU Portable AC, 10,000 SACC, Self-Evaporating
14,000 BTU ASHRAE10,000 BTU SACCSelf-evaporatingUp to 700 sq ft
Check price on Amazon
Best for: A large room in a moderate-humidity climate where emptying a tank is a chore to avoid.

AGTANA lists 14,000 BTU ASHRAE and 10,000 BTU SACC, with a self-evaporating system that recycles condensate to cool the condenser and exhaust the rest as vapor. In dry or moderate humidity this means you rarely empty a tank, which is the chore people hate most about portables.

Self-evaporating is not drainage-free in all conditions. In very humid weather the unit can still fill its pan, so keep the drain hose handy. Its SACC is close to the BLACK+DECKER 14,000 BTU at 10,200, so it competes on capacity, and it differs on drainage and brand depth.

Ownership includes the usual filter washing and hose care. As a smaller brand, check the warranty and replacement parts, since a portable with a compressor failure is often not worth repairing. Tip the unit upright for several hours before the first start if it was shipped on its side, so the compressor oil settles.

What works

  • 10,000 BTU SACC for large rooms
  • Self-evaporating condensate system
  • Covers up to 700 square feet
  • Cool, fan and dehumidify modes

Watch out for

  • Can still need draining in very humid weather
  • Smaller brand with less support history
  • Compressor noise in the room

Spec sheet

Marketing capacity
14,000 BTU ASHRAE
DOE capacity
10,000 BTU SACC
Coverage
Up to 700 sq ft
Drainage
Self-evaporating
Modes
Cool, fan, dehumidify
06
16,000 BTU Portable AC with Wi-Fi and 6-in-1 Modes
16,000 BTUWi-Fi app6-in-1 modesUp to 700 sq ft
Check price on Amazon
Best for: A big room where feature count matters, if the SACC figure checks out.

This unit lists 16,000 BTU for rooms up to 700 square feet with Wi-Fi, an app, and a six-in-one feature set that adds sleep mode, timer and auto swing to cooling, dehumidifying and fan. The data does not give a SACC figure, so you cannot judge its real capacity from the listing.

That missing number matters. A 16,000 BTU ASHRAE unit with a typical 70 percent ratio would deliver roughly 11,000 SACC, but without the label you are guessing, so check the Energy Guide on the page before buying. Compared with the BLACK+DECKER 14,000 BTU it promises more but documents less.

Ownership is the same routine of condensate care and filter washing. Ask the seller for the SACC rating in writing, because it is the figure that decides whether the unit suits your room.

What works

  • 16,000 BTU marketing capacity
  • Wi-Fi app with sleep, timer and swing
  • Six functions in one unit
  • Rated for up to 700 square feet

Watch out for

  • No SACC figure in the data
  • Brand and support are unclear
  • Compressor noise in the room

Spec sheet

Marketing capacity
16,000 BTU
Coverage
Up to 700 sq ft
Modes
Cool, dehumidify, fan, sleep, timer, swing
Control
Wi-Fi and app
Use
Large rooms

Spec sheet decoder

What the numbers on the box really mean

The specs manufacturers lead with, translated into what they tell you about real-world performance.

ASHRAE BTU

The marketing capacity measured under conditions that flatter the unit. It is higher than the DOE number.

Watch forThe BLACK+DECKER 14,000 BTU and AGTANA 14,000 BTU both list ASHRAE figures near 14,000.

SACC BTU

Seasonally Adjusted Cooling Capacity, the DOE rating reflecting real operating conditions. It is the figure to compare.

Watch forThe lineup runs from 5,550 SACC on the BLACK+DECKER 10,000 BTU to 10,200 on the BLACK+DECKER 14,000 BTU.

Coverage

The room size the maker says the unit can cool. It often assumes the marketing number.

Watch forThe BLACK+DECKER 10,000 BTU claims 450 square feet on 5,550 SACC, which is generous.

Self-evaporating

A system that uses condensate to cool the condenser and exhausts it as vapor. It reduces how often you empty a tank.

Watch forThe AGTANA lists it, but humid conditions can still fill the pan.

Hose count

A single-hose unit exhausts room air, and a dual-hose unit uses separate intake and exhaust hoses. Dual-hose avoids infiltration.

Watch forThe data here does not state hose count for most picks, so check the manual.

Methodology

How We Evaluated These Portable Air Conditioners

Real capacity

We compared SACC figures instead of marketing BTU, giving credit where the listing states them. The BLACK+DECKER 14,000 BTU at 10,200 SACC and the Midea at 7,100 SACC were scored on real cooling, not the box.

Coverage honesty

We checked whether the room-size claim lined up with SACC. The BLACK+DECKER 10,000 BTU claims 450 square feet on 5,550 SACC, and we marked that down.

Drainage and upkeep

We weighed self-evaporating systems against tanks and drain hoses. The AGTANA earned credit for lowering the chore, with a caveat for humid weather.

Smart features

We looked at apps, timers, sleep modes and remotes. Features are useful in a bedroom, but we scored them lower when the SACC figure was missing.

Support

We considered brand depth and parts availability based on owner feedback patterns. BLACK+DECKER and Midea scored higher than unbranded or newer labels.

Decision guide

How to Choose the Right Portable Air Conditioners

By Room Size (SACC)

SituationPickWhy
Small bedroom near 250 sq ftBLACK+DECKER 10,000 BTU5,550 SACC
Bedroom near 300 to 350 sq ftMidea 10,000 BTU7,100 SACC
Bedroom or living room near 400 to 550 sq ftBLACK+DECKER 12,000 BTU8,350 SACC
Large room near 500 to 700 sq ftBLACK+DECKER 14,000 BTU10,200 SACC

By Budget

SituationPickWhy
Lowest costBLACK+DECKER 10,000 BTUSmallest chassis
Low-to-mid with real SACCMidea 10,000 BTU7,100 SACC
Mid-rangeBLACK+DECKER 12,000 BTUSmart app
Higher for large roomsBLACK+DECKER 14,000 BTU10,200 SACC

Tank vs Self-Evaporating

Tank or drain hose

The BLACK+DECKER and Midea units collect condensate and need emptying or a drain hose in humid weather. They cost less, and the chore is predictable.

Self-evaporating

The AGTANA recycles condensate to cool the condenser and exhausts the rest as vapor. It means fewer trips to a tank in moderate humidity, but it can still fill in very humid weather.

Choose self-evaporating for a dry or moderate climate, and any unit with a drain hose for humid areas.

Smart vs Simple

SituationPickWhy
Want an app with a known brandBLACK+DECKER 14,000 BTUSmart app
Want an app in a small roomMidea 10,000 BTUSmartHome app
Want a remote onlyBLACK+DECKER 10,000 BTUFollow Me remote
Want maximum features16,000 BTU Wi-Fi unitSix functions

For Renters Specifically

Look for

A unit that needs no mounting, a window kit that fits your sash and an honest SACC rating. Renters should also confirm the unit can be stored in a closet in winter.

In this comparison

The BLACK+DECKER 12,000 BTU and 14,000 BTU units come with window kits and smart apps, and the Midea 10,000 BTU is the compact choice.

When to Spend More

Spend more if

Your room is over 400 square feet or gets hot afternoon sun. The BLACK+DECKER 14,000 BTU at 10,200 SACC or the AGTANA 14,000 BTU is worth the step up.

Save if

The room is a small bedroom or office. The Midea 10,000 BTU gives 7,100 SACC for less.

Ownership

Maintenance schedule

The upkeep that decides whether this machine lasts two seasons or ten.

TaskIntervalWhy it matters
Empty or drain condensateAs neededA full tank shuts the unit off, and standing water breeds odor. Use the drain hose in humid weather.
Wash the filterEvery 2 weeks in useA clogged filter cuts airflow and capacity. Dry it fully before refitting.
Check the hose and window sealEach installGaps let hot air back in and undo cooling. Seal the panel with foam if needed.
Clean the coilsEach springDust films the coil and cuts efficiency. A soft brush and a vacuum restore airflow.
Dry and store uprightEnd of seasonLeftover water breeds mold. Run fan mode to dry the unit, then store it upright.

FAQ

Frequently Asked Questions

What is SACC on a portable air conditioner?

Seasonally Adjusted Cooling Capacity is the DOE rating of real cooling, adjusted for operating conditions. It is lower than the marketing BTU, so use it to size the unit.

Why does my 14,000 BTU unit not cool 700 square feet?

Because the real capacity is about 10,000 BTU SACC, and the 700 square foot claim assumes ideal conditions. Sun, a hot hose and a poor window seal all reduce it.

Are portable ACs worse than window units?

Generally yes, because the compressor and the hose heat are in the room and single-hose designs draw in warm air. They are the right choice only when a window unit cannot be installed. A portable also uses more electricity per unit of cooling than a window unit of similar real capacity.

Do I need to empty the water?

Often, yes. Self-evaporating units like the AGTANA reduce the chore, but very humid weather can still fill the pan. Plan a drain hose.

How loud is a portable AC?

Louder than a window unit because the compressor is in the room. Use sleep mode and place the unit away from your bed.

Can a portable AC heat a room?

Only models that list a heat function. Most here are cool, fan and dehumidify only, so check the specs if you want heat.

Bottom line

The short version

Browse more portable air conditionerson Amazon →
James Miller, Lead Machine Editor

About the author

James Miller

Lead Machine Editor, MachineFanatic

James Miller leads MachineFanatic's buying guides, turning spec sheets, manuals and owner feedback into clear verdicts on power tools, outdoor power equipment, shop machines and kitchen machines.

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