Best Reviewed Air Conditioners under $400 of 2023

Overview

Decoder analyzed more than 18,771 reviews to find which air conditioners under $400 are loved by shoppers, and which ones standout based on the following important qualities:

Cooling Power
Energy Efficiency
Noise Level
Fan Speed Options
Dehumidification

Read more about what factors to consider when shopping for air conditioners in our buyer's guide.

Results (20)

Best Overall

1

Frigidaire

FFRA051WAE Window-Mounted Room Air Conditioner

$181.00

Prime

Bottom Line

Great for smaller rooms, this air conditioner can quickly cool down a space and does an excellent job at reducing humidity. Although it is not as powerful as some larger air conditioners, it is more energy efficient and reasonably priced.

Rank based on 2,178 reviews

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Also Great

2

hOmeLabs

6,000 BTU Window Air Conditioner

$267.47

Bottom Line

This air conditioner is a great choice for those looking for an efficient and effective way to cool a room. It is also energy efficient and has different fan speed options.

Rank based on 1,349 reviews

Premium Choice

3

LG

10,000 BTU Window Air Conditioner

$399.00

Bottom Line

This air conditioner is perfect for small spaces and actually helps improve air quality with its dehumidification function. Some find it noisy, but others appreciate the noise level.

Rank based on 431 reviews

Budget Pick

4

TCL

5WR1-A Home Series Window Air Conditioner

$155.59

Prime

Deal

Bottom Line

If you're looking for a powerful and energy-efficient air conditioner for a small to middle-size room, this unit is a good option. However, the noise level may be too loud for some people.

Rank based on 275 reviews

5

LG

Mounted 8,000 BTU Window Air Conditioner

$248.00

Prime

Deal

Bottom Line

This air conditioner is good for cooling down a room quickly, but the loud fan noise can be disruptive.

Rank based on 1,098 reviews

6

TOSOT

10,000 BTU Window Air Conditioner

$359.99

Prime

Bottom Line

Overall, this is a great air conditioner with efficient cooling power, different fan speed options, and energy-saving features. The only drawback is that some customers have found it lacking on very hot days or in larger rooms.

Rank based on 577 reviews

7

BLACK+DECKER

8,000 BTU Portable Air Conditioner

$386.77

Prime

Deal

Bottom Line

This air conditioner is a great choice for those looking for an energy efficient option that cools quickly and effectively. There have been some reports of defective units, so be sure to check your unit carefully before use.

Rank based on 5,060 reviews

8

Midea

5,000 BTU EasyCool Window Air Conditioner and Fan

$158.99

Prime

Deal

Bottom Line

This air conditioner is perfect for small spaces and cools quickly and effectively. The dehumidifier setting is also effective, but it can be noisy and may leak water onto the floor.

Rank based on 1,965 reviews

9

LG

6,000 BTU Window Conditioner

$184.95

Prime

Deal

Bottom Line

This air conditioner is great for small rooms and spaces. It has three fan speed options, an energy saving mode, and dehumidification capabilities. However, it is a bit noisy overall and does not seem to remove all the moisture from the air.

Rank based on 1,004 reviews

10

GE

Window Air Conditioner 5000 BTU

$189.00

Prime

Bottom Line

An affordable and energy-efficient option that is great at cooling small spaces and removing humidity. Some found it too noisy, however.

Rank based on 518 reviews

11

BLACK+DECKER

14,000 BTU Portable Air Conditioner

$325.65

Prime

Deal

Bottom Line

Overall, this air conditioner is a great choice for those looking for an energy efficient option that will cool quickly and effectively. Some people may find it noisy, but the fan speed options can help mitigate that.

Rank based on 459 reviews

12

Vremi

6,250 BTU Portable Air Conditioner for Rooms up to 250 Square Feet

$379.99

Bottom Line

This air conditioner is a good choice for smaller spaces as it can cool the room down quickly and is energy efficient. However, it is not very efficient in larger spaces and some find it noisy.

Rank based on 924 reviews

13

Amazon Basics

Window-Mounted Air Conditioner

$155.92

Prime

Bottom Line

This small air conditioner is a great choice for those looking to cool a small space quickly, quietly, and efficiently.

Rank based on 336 reviews

14

ZAFRO

8,000 BTU Portable Air Conditioner

$289.99

Prime

Deal

Bottom Line

Overall, this is a great air conditioner for cooling smaller areas quickly and efficiently.

Rank based on 188 reviews

15

TCL

6W3ER1-A Home Series Window Air Conditioner

$199.99

Prime

Bottom Line

Overall, this is a great air conditioner with powerful cooling capabilities. However, the noise level is definitely a drawback.

Rank based on 276 reviews

16

LG

6,000 BTU (DOE) / 8,000 BTU (ASHRAE) Portable Air Conditioner

$327.03

Prime

Deal

Bottom Line

If you're looking for a quick and easy way to cool a small room, this air conditioner is a great option. However, it is noisy and may not be as effective in larger rooms.

Rank based on 149 reviews

17

Shinco

12,000 BTU Portable Air Conditioners

$379.99

Prime

Bottom Line

This air conditioner is an excellent choice for cooling large spaces quickly and efficiently. It also has fan speed options to cool a room quickly, and it is energy efficient.

Rank based on 395 reviews

18

GLOBAL AIR

10,000 BTU Portable Air Conditioner

$329.95

Bottom Line

A great air conditioner for those looking for quick, effective cooling power. The noisy fan may be a drawback for some, but the unit is otherwiseenergy efficient and dehumidifies well.

Rank based on 1,169 reviews

19

LG

8,000 BTU Smart Window Air Conditioner

$309.03

Deal

Bottom Line

This air conditioner is great for cooling large areas and is energy efficient. However, it can be noisy on the highest fan setting.

Rank based on 253 reviews

20

TOSOT

10,000 BTU(ASHRAE) 6,000 BTU (DOE) Portable Air Conditioner

$338.26

Prime

Deal

Bottom Line

Overall, this is a great air conditioner for small rooms. It's easy to set up, energy efficient, and does a great job at cooling and dehumidifying.

Rank based on 167 reviews

Buyer's Guide

Written By

Decoder

Oct. 4, 20222 3:02 p.m. PT

Decoder is a product recommendation engine that eliminates the guesswork of online shopping and finds the perfect product for your needs.

Planning to buy an air conditioner?

When buying an air conditioner, there are several factors to consider in order to find the best unit for your home. The size of the unit is important to consider, as an air conditioner that is too small will not be able to effectively cool your home, and a unit that is too large will be less efficient and will likely cycle on and off more frequently. The type of air conditioner is also important to consider, as there are units that are designed for specific climates. If you live in an area with a hot, humid climate, you will want to look for an air conditioner with a higher SEER rating. Other features to consider when purchasing an air conditioner include the warranty, energy efficiency, and noise level.