Best Portable Air Conditioner Under $400

The rate at which technology is revolutionizing has impressed many. No one has ever thought that once there will be portable air conditioners. Thanks to the invention of these modern devices introduced to cool your room, mostly during hot seasons. It is a great idea for those whose residence never cools down even after the sunsets.

Today, whenever you intend to cool down your room, the best option is to buy a good air conditioner. These units will save you a lot from paying extra bills, as they take up very little energy, yet the rat which they work is no exception.

In this article, I have done good research to help make your work effortless in searching for the best air conditioner among the many varieties in the marketplace.

In case you are new to this field of expertise, there is a detailed buyer’s guide at the end of this article. You can survey it thoroughly so that you switch your mind and join this league of brilliant air conditioners.

Buyer’s Guide Of the Best Air Conditioner Under $400

portable air conditioner under $400 installed in a bedroomWith the number of benefits spotted in this article, it is not far from the truth to say that air conditioners offer the best way to cool down our rooms. Regardless of the level of temperature in your room, these units serve to eliminate the excess heat.

The noticeable feature that most users find amazing is these units’ ability to work at continuous variable speeds. And you can even change the speeds to fit the perfect level you want. So think of all this comfort in one tool; why not try one?

Indeed, I can attest that air conditioners are among the best innovations we have currently in this century. They have superb strength, work quietly, and yet they take up little energy is an added advantage of these tools. So you won’t have to hesitate about the electricity bills.

Some of the latest types come with the newest features that are relatively easy to use, needing no experience to set up. Note that the package includes all essentials, such as the remote control that gives you the latitude to operate the conditioner from whichever position you are, either on the bed or at the comfort of your couch.

So if you had problems choosing the best tool to cool down your area, this is the perfect solution and exact place to get started. Read this buyer’s guide for more details.


You all know how moving around with heavy tools is a complete mess. So the best way to do away with such issues is by investing in a compact tool and has no weight issues. By doing so, you will find it easy to move around with your gadget for efficient cooling. Don’t assume this aspect when looking for your best tool.


Power often acts as the heart of every tool. When you have a tool with great power, you will work on various applications with ease. In this case, a powerful air conditioner means more air will be distributed all over the area evenly. Therefore, you will enjoy the comfort of your house with cool air.


Usually, all air conditioners produce a certain amount of noise when used; it is wise to choose the one with minimal noise. Tools with much noise will distract you from your comfort zone. So it sounds better to settle on a proper tool with lesser noise.

Energy Efficiency

Most users buy their gadgets based on their budget. That’s a great fact. With a tool that consumes little bits of energy, you rest assured of lesser power bills at your place. So don’t mind buying tools as they will help you not only to save money, but also energy.


Anyone who has been using this tool for the longest time will assert that the quality of materials involved in making a tool will determine the period it will serve you. Before you take the initiative of purchasing these units, confirm that the elements used in making them are legit.

Best Portable Air Conditioner Under $400 Reviews

1. BLACK+DECKER BPACT10WT Portable Air Conditioner

BLACK+DECKER BPACT10WT Portable Air Conditioner...
  • QUIET & POWERFUL - Our 6,000 BTU DOE (10,000 BTU ASHRAE) compact air conditioner (16.5 x 11.5 x 26 in,) will keep you cool and comfortable all summer. An adjustable fan speed cools the air to 65°F at the coolest setting. Sleep mode makes it extra quiet while you rest
  • PERFECT FOR SMALL ROOMS - This floor-standing portable AC unit provides steady, fast, effective cooling for rooms up to 150 sq. ft. It’s the ideal small air conditioner for dorms, apartments, cabins, campers, offices, bedrooms, or living rooms
  • SIMPLE & QUICK TO INSTALL – Just wheel this portable air conditioner into any room with a double hung or sliding window. Attach the included hose (4’ 11”) & window adapter, & plug it in to an outlet! At the end of the season, just unhook & store
  • EASY TO USE & CLEAN – The simple remote control & top-mounted LED display with 24-hour timer allow you to precisely control the air temperature. To clean the filter, just slide it out twice a month, rinse it thoroughly under running water, & put it back
  • 3-in-1 FUNCTIONALITY - Combines 3 energy efficient functions for all of your cooling & ventilation needs with cool, fan, & dehumidifying modes all in one machine. Bucket-less, self-evaporating operation makes your living space cool, clean and dry

Among the many air conditioners on the market today, not even one of them can defeat this beast in cooling down a room. This kit is relatively easy to install and use. It integrates a simple remote control with a LED display and a timer that allows you to take complete control of the air temperature throughout the day.

Essentially, no experience required to install this unit. Move it around any room with a sliding window; after that, connect the hose and the window adapter and place it into an outlet. When you are done using it, you can remove it and store it for later use.

It is essential that it blends three energy-efficient functions to deliver the best cooling options with fans and more modes in one package. When it comes to cleaning the filter, you have to remove it at least two times a month, wash it using running water and return it to the initial position.

You will be pleased that it is a powerful tool, yet it works almost silently. When at the most relaxed mode, the fan can cool the air to 65 degrees F. You can set it to sleep mode so that it works even more silently as you relax. It is the best option for rooms below 400 sq.


  • It works well in smaller rooms.
  • Easy to set up and use.
  • Easy to do the cleaning.
  • It has many reliable options.
  • Great value.
  • You will like the price.


  • It needs to be installed each time it is taken to another room.

2. SereneLife SLPAC Portable Air Conditioner

SereneLife SLPAC Portable Air Conditioner with...
  • HANDY AND PORTABLE: The Serene Life Portable Air Conditioner System features a lightweight, handy, sleek body design intended to be used in the bedroom, living room, or garage at home or office. It features rolling wheels for easy portability
  • BUILT-IN DEHUMIDIFIER: You don’t only get the cooling effect of the portable AC, but it also helps reduce humidity levels, acts as purifier which makes your home less hospitable to allergens such as dust mites, mold, and mildew by selecting dehumidifier mode.Wipe with soft semi-dry cloth
  • 4 OPERATING MODES: The compact floor AC indoor cooler conditioning unit features a simple electric plug in operation and has 4 modes - cooling, heating, dehumidifier, and fan. Also features automatic swing mode w/ moving wind vent for maximum air circulation
  • REMOTE CONTROL: Features a digital touch button control panel which includes the power, mode, timer, temperature, and fan speed settings. Other functions such as unit selector (°C/°F), sleep key can be adjusted using the included remote control
  • GREAT FOR ALL YEAR ROUND: With 10, 000 BTU cooling power and 9, 000 BTU Heating power, this is the best option to save space and money. The cold air can cover a room up to 350+ sq. ft. , Air flow is rated at 290 m3/hr., moisture removal/dehumidifier at 15 liters/hr. w/ an operating noise level of only 52-56 dBa

Are you looking for an air conditioner that keeps the air both dry and cool? Why not try this versatile tool from a trusted brand? This AC offers you cool air and ensures that you have a nice sleep as it works almost quietly. It is built in a manner that no bacteria can form on it during hot seasons.

This unit is compact with dimensions of 17.4” L by 13.4” W by 32.1 H. It only weighs 62.1 lbs. Meaning you can rely on it to move around your rooms easily.

The package includes a remote that you can use to control the air from the comfort of your bed or couch. This remote also incorporates a control panel that allows you to set the units in degrees. However, at times the remote fails to work.

For easy movements within the rooms, it is provided with solid wheels that also add to its stability. It has a special design which allows it to excel easily in small rooms. You will find three fan levels; low, medium, and high. You can select each level based on what you want.

The total cooling power is around 10,000 BTU; this air alone is more than enough to cover a room measuring 450 square feet. The whole package includes a manual installation guide, remote control, and a window mount kit. The batteries are not included in the package; instead, you will have to purchase them separately.


  • It has three different options.
  • The price is worth it.
  • The noise level is shallow.
  • It has a new look.
  • Saves space and money.


  • The remote has issues.

3. Rollibot ROLLICOOL Portable Air Conditioner

Rollibot ROLLICOOL Portable Air Conditioner w/App...
  • Voice Control with Amazon Alexa – Complete your smart home setup by pairing your room air conditioner with Amazon Alexa. After pairing with your Alexa compatible ac unit, Alexa responds to voice commands to help keep your home comfortable.
  • Control via Mobile App – With the RolliCool app, control your portable ac from anywhere in the world! Switch modes, set a schedule, and more. And, if your phone’s charging, grab the remote or use the control panel and start relaxing with the push of a button.
  • Comfort All Seasons Round – This powerful 14,000 BTU air conditioner cools, heats, dehumidifies, or circulates air in your space. Switch between three fan levels or cut sleep mode on and doze off to fan sounds. (Note: On COOL mode, exhaust tube must be installed properly to vent heat air out through window / wall.)
  • Easily Move It to Anywhere – The sturdy and portable design of this air conditioner and heater prevent accidental falls and allows the air cooler to roll into living rooms, bedrooms, offices, and more.
  • Environment-Friendly Refrigerant – Go green and stay cool with this small air conditioner’s eco-friendly R410A refrigerant and reusable filters. Wash* the filters, pop them back in, and enjoy a cozy, odor-free environment. *The included carbon filter is not washable.

Why should you fix yourself with models that often fail to work while you have the best option here? The Rollibot is a unique air conditioner with the newest features you will ever find. You can guess how well it works by just looking at the sleek design.

This is a tool you can depend on to cool down your office, outdoor home tents, garages, and the rest. The weight is acceptable, plus it comes with strong and stable wheels, which make movements easier.

However, it only works with Alexa. But, it has new features such as voice recognition, which can switch the mode, set timers as well as change the temperatures. Before you pair it with Alexa, change the name of your conditioner so that you can notice it quickly.

In case you are new to these units and are worried about how to use them, don’t worry anymore. You will simple user steps that will lead you as you set up this unit.

With the three optional modes, you will enjoy flexibility in adding comfort to your room with a single touch of a button.


  • It operates quietly.
  • Excellent customer service.
  • Easy to set up.
  • Provides both dry and cool air.
  • It is easy to clean.


  • It switches off sometimes.

4. Amazon Basics Portable Air Conditioner with Remote

Amazon Basics Portable Air Conditioner with Remote...
  • Remote controlled, rolling plug-in air conditioning unit cools and dehumidifies rooms up to 400 square feet; 10,000 BTU (ASHARE -128 Standard) / 5500 BTU (SACC - DOE 2017 Standard)
  • Easily exhaust hot air through a window with the unit’s expandable outtake hose; venting kit with sealing, side panel leaf covers, bracket, and instructions included
  • Rolling caster wheels and easy-grip side handles enable convenient, easy portability
  • LED light display with full-function remote control (remote batteries not included); includes 3 speeds, 3 cooling settings, and automatic timer
  • Fits standard windows and can be customized for non-traditional windows such as crank and egress
  • Adjustable directional fan levers to control and customize air flow for maximum circulation

Leave alone those devices that produce unwanted noises when at work; this one functions very quietly that it’s tough to notice. Remember that you can activate it using voice controls when paired with Alexa and other certified panels.

It is designed to work with typical windows, but you can set it to fit other windows like egress and crank windows. For even further air circulation, this unit incorporates adjustable fan levers that also control the airflow in your space.

The package includes all of the critical appliances such as remote control, venting kit, brackets, instructions, etc. You can adjust it up to 3 different speeds, cooling settings, and not to forget a modern timer.

With this device, the warm air is expelled out of the house quickly with a hose’s help. This feature will ensure that you experience the coolest temperatures at all times.

Not to forget, the rolling wheels offer excellent support when moving around different places. These wheels ensure that the whole conditioner remains stable to execute the functions with a lot of ease.


  • It arrives as a whole package.
  • The options are great.
  • It has a fine loom.
  • Ideal for smaller rooms.
  • It works as intended.


  • Fixing it is pretty uneasy.

5. Airmax 12000 BTU 400 Sq Ft with Remote Control

AireMax 12000 BTU 3-in-1 400 Sq Ft with Remote...
  • MAX COOLING IN COMPACT DESIGN: 12,000 BTU (6,500 BTU DOE) portable air conditioner cools rooms up to 400 square feet. Maximum power keeps you comfortable and compact, space-saving body design saves you room.
  • MAX FLEXIBILITY: With 3 operating modes - cool, fan, and dry - this versatile unit keeps your area cold. 3 fan speeds, adjustable top louvers, and dehumidification up to 78 pints per day keep you reliably comfortable.
  • MAX PORTABILITY: Push conveniently on four rolling casters using the integrated side handles. Easily adjustable, mobile window installation kit is optimum for both vertical and horizontal windows.
  • MAX FILTRATION: Dual filters catch pet hair, dust, and other particles to keep them from clogging internal components. Wash and dry the filter periodically to keep your machine in working efficiently.
  • MAX CONTROL: Multi-colored LED display is modern and sleek without being obtrusive. Top-mounted, easy-to-use electronic controls are supplemented by multifunction remote control. Cord Length-5.9 feet

For a compact unit that delivers maximum conditioned air with the newest options, try the AireMax. This unit boasts three functional modes that combine to leave your area calm. The presence of two fan speeds, adjustable front louvers, in line with other great options, teams up to give the utmost comfort all day long.

This unit has filters that you can use several times. Besides, cleaning them is also easy, and anyone can do it. They serve to get hold of any particles that try to enter the internal parts of the conditioner.

The side handles can adjust to full length so that you move them quickly. This unit is fitted with strong wheels that are essential in movements around the places you want. Additionally, it is well designed with an exhaust hose whose main function is to deliver warm air outside the room.

In the package, you will find a remote with batteries included; this remote allows you to operate the conditioner from any given point of your room or area. Not to mention, it is a compact gadget with dimensions of 14.2” D 11.8” W and 30” H.

It merely weighs about 63 lbs. Similar to most devices in its category, it produces minimal noise. That’s a great victory because you won’t get disturbed when enjoying a nice sleep at night.


  • This gadget works almost silently.
  • It has two speeds.
  • The features are unique.
  • Great value.
  • The price is welcoming.
  • Remote control.


  • The features are not better than equivalent tools.

6. Commercial Cool CPT10W6 Air Conditioner

Commericial Cool CPT10W6 Air Conditioner, 6,000...
  • 3 IN 1 MULTIFUNCTION AIR CONDITIONER – The 6,000 BTU DOE (10,000 BTU ASHRAE Portable Air Conditioner has got all you need and more! Its is an Air Conditioner Dehumidifier and Fan in one ultimate product You get to have all these functionalities by just getting the 6,000 BTU DOE (10,000 BTU ASHRAE Device
  • PORTABLE AND COMPACT DESIGN – With a sleek and compact design this portable air conditioner will be your one stop device to give you the comfort that you need to keep your room just in the right temperature They are easy to move around and durable at the same time
  • COMES WITH A REMOTE CONTROL AND 24-HOUR TIMER – This home appliance is perfect when all you wanted is to relax in comfort The remote-control air conditioner comes with a 24-hour timer so you can easily set the time to shut it off and sleep away You can also use the remote control to set the temperature as well
  • EASY TO CLEAN WITH AUTO WATER EVAPORATION – Get yourself an air conditioner that comes with an auto water evaporation system making them easy to clean and to maintain You can effortlessly lift out the washable filters to clean them!
  • WINDOW SLIDER KIT– Our window slider kit is designed to fit most standard Vertical & Horizontal single or double hung windows Minimum Opening 26 5 Inches Maximum opening 48 inches Hose can reach a maximum of 4 feet

The distinguishing characteristic that makes the Commercial Cool a unique tool is that it is a multifunction air conditioner.

Beginning with the sleek and lightweight design, this gadget will offer different temperatures to your room, leaving it comfier to stay inside. Besides being long-lasting tools, they are also straightforward to move around with.

Next, you will find a remote control and a timer that you can set, so the tool shuts off when not in use. This feature allows you to relax without being worried about excessive use of energy. You can as well use the remote to balance the temperature in your room depending on what you prefer.

No one can wish to have a unit with complicated ways of using it and cleaning. This commodity merges both cleaning and easy installation in one package but still gets the same objective.

It is effortless to perform this work, meaning no experience is required to do the trick. What you dislike is the color of this gadget; otherwise, it is worth the investment.


  • The compact design allows easy movement.
  • It has various control options.
  • The window slider kit can fit most typical windows.
  • Works nicely.
  • Great customer service.


  • The color is not impressive.

7. TCL 14P31 Portable Air Conditioner

TCL 14P31 portable-air-conditioner, 14,000 BTU,...
  • 3-IN-1 FAN, AC, AND DEHUMIDIFIER: Choose the perfect mode to keep your room cool, clean, and dry without ever needing to empty a bucket with our self-evaporating design.
  • POWERFUL COOLING CAPACITY: The 14,000 BTU portable air conditioner is powerful enough to cool rooms up to 350 sq. ft. and features multiple fan speeds that allow you to choose your level of comfort.
  • SET UP IN MINUTES. MOVE AROUND IN SECONDS: With the simple and easy installation kit, set up your portable AC unit in minutes using the included hose and window kit. Weighing only 66 lbs, the portable AC features handles and wheels for easy movement from room to room. (Size: 14.56 x 17.61 x 28.15 inches)
  • COMFORTABLY QUIET: Thoughtfully designed to not disturb you, this ac unit noise level is as low as 51 decibels so you can enjoy serene cooling in peace.
  • EASY AND CONVENIENT CONTROL: The LED display makes controlling your portable air conditioner simple while the included remote lets you effortlessly control the unit without ever leaving the couch.
  • KEEP YOUR ENERGY BILL LOW: The 24-Hour Timer and Sleep Mode help to keep your energy bill low while you stay comfortable.
  • PROTECT YOUR AC FROM DUST & PET HAIR: The washable and reusable filter helps protect the life of your window AC while also reducing large airborne particles like dust and pet hair.
  • RESTARTS AUTOMATICALLY: Auto-restart mode ensures your AC unit turns on automatically to provide comfort even after a power outage.
  • VERSATILE DESIGN: Use your quiet portable air conditioner in the bedroom, living room, utility room, dining room, basement, nursery, dorm, office, or where needed.

Whenever efficiency meets impressive features, what do you expect? Nothing but the best. This unit is propelled by decent features, which play a major role in ensuring you stay in a well and more comfy room or area.

It includes a powerful cooling capacity with a cooling power of about 14,000 BTU. This energy is enough to calm down rooms up to 350 sq ft.

It features several fan speeds that you can select the comfort you want. Assemble it in few minutes with the provided user manuals that lead you in the entire process. With a maximum of 66lbs, you enjoy easy moments from one room to another with sturdy wheels and advanced handles.

In essence, the LED display lights add to the comfort of moving around quickly, whereas the remote controls allow you to use the conditioner without leaving your bed or couch. What a nice combination!

One last feature to reflect is the level of noise produced by this gadget. If you relate it with other units mentioned here, this one is different. It works efficiently with a lot of strength, yet it releases a small amount of noise. You will get shocked that it doesn’t consume much energy as most people would assume.


  • Ideal for areas with small spacing.
  • The price will impress you.
  • Great value.
  • Remote control included.
  • You will love the compact and sleek design.


  • You might risk losing the remote.

Other budget-friendly portable air conditioners

Cheap portable air conditioners under $100

Best portable air conditioners under $200

Best portable air conditioners under $300


If you are in that portion of people who live in areas with high temperatures, then these units are ideal for you. By acquiring them, you will weed numerous benefits that will even exceed your intentions.

So it is your responsibility to make a wise decision and get at least one of these products. By doing that, you will feel the comfort enjoyed by other people. All tools I have displayed in this session are worth the price, but I feel that the BLACK+DECKER should not miss from your list. Now rely on this guide, and you will never have issues in your job of searching for the best tool for the job.