Best Wall-Mounted Dehumidifiers

According to the annual climate report of 2020 by the National Oceanic and Atmospheric Administration (NOAA), land and ocean temperatures have increased by 0.13 degrees Fahrenheit every decade since 1880

The increase in temperature directly increases gaseous water vapor from water bodies, also known as humidity. The warmer air holds more water vapor or humidity as well.

Due to the drastic increase in humidity in many parts of the world, dehumidifiers have become almost a necessity. Dehumidifiers decrease humidity of an overly humid indoor space and halt the growth of mold, allergens, and mildew found in damp and humid atmospheres. 

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If you want to buy a large dehumidifier but don’t have enough space in your home, wall-mounted dehumidifiers could be a good option for you

Today, we discuss the best wall-mounted dehumidifiers available in 2021. In this article, you will find:

  • Reviews of the four best wall-mounted dehumidifiers.
  • A detailed buyer’s guide.
  • Answers to frequently asked questions.
  • Hopefully, your new wall-mounted dehumidifier.

Four Best Wall-Mounted Dehumidifiers in 2021

1. Innovative Dehumidifier Systems IW25-4 Dehumidifier – Best Overall

Innovative Dehumidifier Systems ENERGY STAR® IW25-4 On Wall Dehumidifier with Bi-Polar Ion Generator removes 29 PPD for 1500 sq ft


This is a large wall-mounted dehumidifier that holds 29.5 pints per day capacity. It maintains humidity below 60 percent inside your home and it is ENERGY STAR® Certified.


  • Capacity: 29.5 pints
  • Item Dimensions: 17.25 x 7.25 x 30.38 (LxWxH) inches
  • Item Weight: 39 pounds


Decreases Humidity: This 1,500 sq. ft. wall-mounted dehumidifier is tankless, energy-efficient, and quiet. You can install the IW25-4 directly onto your interior walls. It keeps the relative humidity below the 60 percent mark with a capacity of 29 pints per day.

Bipolar Ionization Technology:  This dehumidifier has built-in Bipolar Ionization Technology. It mitigates viral and bacterial and viral spread while dehumidifying. With the help of the Bipolar Ionization Technology, this dehumidifier also prevents molds and allergens.

Easy To Handle: The IW25-4 Dehumidifier is strong but operates very quietly at just 45dBA. It will purify the air in your home without sacrificing ambiance or comfort. It features an automated restart after a power interruption. 

The inbuilt LED light of the dehumidifier glows whenever the air filter needs to be cleaned. There is no need for manual draining as the unit drains straight into a hub drain or other plumbing source.

Tamper Proof Unit: The wall-mounted dehumidifier features a lock-out control system. The digital hygrometer is safely covered behind the tamper-proof cover. The IW25-4 also has a detachable front cover plate that allows easy maintenance and hands-free moisture control. 

Warranty: This dehumidifier is covered with five years of warranty by Innovative Dehumidifier Systems on any manufacturer’s defect. The IW25-4 features all-aluminum microchannel coils that provide long-lasting protection.


  • It effectively keeps humidity levels below 60%.
  • It has a high capacity.
  • The draining system is entirely hands-free.
  • It comes with five years of warranty coverage.


  • This dehumidifier is on the expensive side.

Bottom Line: 

The Innovative Dehumidifier Systems IW25-4 Dehumidifier is a ENERGY STAR® Certified high-capacity dehumidifier and provides a smooth operation and hands-free draining for a premium price.

2. Pioneer Air Conditioner + dehumidifier 

Pioneer Air Conditioner WYS012A-19 Wall Mount Ductless Inverter+ Mini Split Heat Pump, 12000 BTU-110/120V


What’s better than having a wall-mounted split AC? An air conditioner that dually functions as a dehumidifier. The Pioneer Air Conditioner is a ductless AC with a heat pump that also dehumidifies your home.


  • Seasonal Energy Efficiency Ratio: 19
  • Color: White
  • Dehumidification: 1 pint/hour
  • Air Flow Efficiency: 141 cubic feet/minute per watt
  • Item Dimensions: 31.5 x 7.5 x 11.75 inches
  • Item Weight: 19 pounds


2-in-1: This air conditioner by Pioneer is an air conditioner plus dehumidifier that cools your home and maintains the humidity level at an appropriate percentage.

Silent: This AC is built to be extremely silent and has a perfect design for home use or even light commercial use.

Complete Package: This AC is a complete package with all the needed components for installation in the box, including a 16-feet copper piping kit.

Cooling & Heating: You can use this AC for heating and cooling and heating with a capacity of 12,000 BTU per hour with 19 SEER and 10 HSPF efficiencies.

Tech Support: Pioneer offers free tech support along with a five-year coverage on the compressor of AC.

Attractive Design: The AC has a minimalistic flat front panel with an LED display that is dimmable. The split AC also features washable air filters, automatic swing air discharge louvers, and a multi-speed fan motor. 


  • It is a 2-in-1 unit as it works both as an air conditioner and a dehumidifier, and as a result, can save you money from having to purchase one of each individually.
  • Pioneer provides excellent customer service.
  • It is extremely quiet.


  • Some users have found the unit to not be very durable.

Bottom Line: 

The Pioneer air conditioner and dehumidifier is an overall excellent 2-in-1 product that works well for cooling, heating, and dehumidification in your home.

3. LG Air Conditioner with Dehumidifier – Runner Up

LG 11,500 BTU 115V Through-The-Wall Air Conditioner with Built-in Dehumidification and Bonus Free Cube Air Refreshener


Just like the previous product, this LG Air Conditioner is also a 2-in-1 unit with dehumidifier. The thermistor thermostat maintains the temperature perfectly. It is another great budget-friendly AC and dehumidifier option by a reliable brand.


  • Timer: 24 hours
  • Cooling Power: 11,500 British Thermal Units
  • Color: White
  • Energy Efficiency Ratio: 10.6
  • Voltage: 115 Volts
  • Floor Area: 530 Square Feet
  • Noise Level: 55 dB
  • Dehumidification: 3.8 pints/hour


2-in-1: This wall air conditioner is a 2-in-1 unit that can function as an effective dehumidifier on extra humid days.

Cooling Power: This air conditioner has a cooling power of 11,500 BTUs, and it can comfortably cool a 530 square feet room.

Dehumidification: The LG air conditioner also provides 3.8 pints per hour dehumidification.

Effective Cooling: You will get three cooling speeds/three fan speeds with the air conditioner. The 4-direction air flow assures that there is consistent cooling throughout the room.

Extra Features: The air conditioner with dehumidifier has a thermistor thermostat and 24-hour timer for maintaining the temperature. There is an auto-restart in case of a power outage and an energy-saver option to save on the electric bill. The unit also has an anti-corrosion coating with a trim kit as part of the package.


  • It is a 2-in-1 air conditioner with dehumidifier for both cooling and dehumidification simultaneously. 
  • Its dehumidification capacity of 3.8 pints per hour is quite high.
  • The 24-hour on/off timer cools according to your schedule.


  • This unit is still relatively new in the market.

Bottom Line: 

It is a great wall AC with a built-in dehumidifier for home and commercial use. It has a slightly lower price compared to other products in this category but still provides great dehumidification and comes from a big name appliances brand.

4. Midea U Inverter Window Air Conditioner – Runner Up

Midea U Inverter Window Air Conditioner 12,000BTU, U-Shaped AC with Open Window Flexibility, Robust Installation,Extreme Quiet, 35% Energy Saving, Smart Control, Alexa, Remote, Bracket Included


The Midea U Inverter Window Air Conditioner is among the most affordable air conditioners with an in-built dehumidifying feature to help maintain the humidity level inside a room. It is extremely quiet and effectively saves at least 35 percent energy.


  • Color: White
  • Item Dimensions: 21.97 x 19.17 x 13.46 inches
  • Item Weight: 69.9 pounds
  • Control Method: App
  • Energy Star: 5 Star
  • Refrigerant: R-32
  • Voltage: 115 volts


35% Energy Savings: Thanks to the DC Inverter technology, the Midea U air conditioner saves over 35 percent of energy compared to most air conditioners with dehumidifiers. It is also the first window AC to receive the ENERGY STAR Most Efficient 2020 Certification. 

Extremely Quiet: You will find this AC with dehumidifier more silent than most traditional units. The U-shape of the AC blocks any noise coming from the cooling system. The operation is as silent as 42 dBA. Therefore, you can have the unit turned on whether you’re working, watching your favorite show, or taking a nap.

Flexible Window Open: The U-shaped design of Midea AC allows you to open your window and bring fresh air inside your home anytime.

Dehumidifying: This air conditioner has a separate mode for dehumidification called the dry mode. The dry mode draws the warm, humid air in and passes it over to the condenser that condenses the humid air and releases the now-dry air in the room.

Smart Control: The Midea U air conditioner is Wi-Fi-enabled, and you can control it from anywhere using the MideaAir app available on both Android or iOS. The AC is also compatible with voice commands through Alexa or Google Assistant.

Robust Installation: There’s a support bracket included with the AC for robust installation supporting the unit with the window closed or open. It is suitable for both double-hung or single-hung windows with a minimum height of 13.75 inches. 

Maintenance: The Midea-U window air conditioner features a removable and washable filter, making maintenance very easy.


  • It is a highly effective energy-saving AC with dehumidifier.
  • It is incredibly quiet during cooling.
  • You can operate this AC from anywhere through its mobile app.


  • The installation process can be tricky.

Bottom Line: 

This Midea U Inverter Window Air Conditioner plus dehumidifier is highly energy-efficient and also extremely quiet. You can conveniently control the AC with your smartphone too.

Buyer’s Guide For The Best Wall-Mounted Dehumidifiers

Covered Area

When buying any dehumidifier, you should consider the floor area of the room in which you want to put the dehumidifier. Just like air conditioners, dehumidifiers also have a specific area in which they operate properly. If the floor area exceeds that, then the dehumidifier won’t be as effective in its performance.


The capacity of a dehumidifier or an AC with dehumidifier is measured according to the amount of water it drains each hour or day. The capacity will also depend on the area the dehumidifier covers. For example, a 1,200-1,500 square feet dehumidifier should have at least 25 pints per day capacity.

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Many dehumidifiers make a lot of noise, which can be a big issue for most people, even if the dehumidifier does a great job maintaining humidity. If the dehumidifier is being used for commercial use, then you may tolerate slight noise, but that’s not acceptable if you install it in your home. Make sure to read the customer reviews entirely before buying, as many dehumidifier brands lie about the sound.

Related article: Quiet Dehumidifiers for Homes


Installing a dehumidifier or an air conditioner with a dehumidifier can be a tricky job, especially if you are not too used to handling electrical appliances. If you are not planning to call an electrician to install your wall-mounted dehumidifier, then go for the ones that are the easiest to install.


Dehumidifiers ought to drain a lot of water, therefore it would be a great added advantage to have an automatic drainage system in your wall-mounted dehumidifier. Note however that very few wall-mounted dehumidifiers have hands-free drainage systems and those dehumidifiers are usually very expensive. Therefore, having this feature will depend on your budget.


Buying a dehumidifier is a long-term investment, and you don’t want it to be a big burden on your electric bill. Therefore do holistic research to find the most economical and energy-saving wall-mounted dehumidifier. Note that the products in this article are all energy efficient.


Dehumidifiers are not something that you should be buying every season as it should be a long-term investment. It’s essential to always buy a durable product whenever you are paying this much for a device.


The reason I put cooling as the last feature in the buying guide is that it’s not a mandatory feature. However, many wall-mounted dehumidifiers are 2-in-1 units that both cool and dehumidify, so if you are opting for an air conditioner with dehumidifier, you will want to consider its cooling power too.

Related article: Best Garage Dehumidifiers

Frequently Asked Questions

Which is the best wall-mounted dehumidifier for you?

There is a limited selection of effective wall-mounted dehumidifiers available in the market. In pursuit of writing this article, I have gone through each of them, and I can conclude that the Innovative Dehumidifier Systems IW25-4 is the best dehumidifier you can find currently.

Why should you buy a wall-mounted dehumidifier?

The primary reason behind buying a wall-mounted dehumidifier is that it saves a lot of space, especially if you’re planning to buy a large dehumidifier. Wall-mounted dehumidifiers take up a lot less space and no floor space.

Will a dehumidifier kill mold?

Dehumidifiers do not kill mold, but they prevent mold growth by cutting out the main cause for growth, which is humidity — the lesser the humidity, the lower the chances of mold in your home or basement.

Related article: Best Wall-Mounted Air Purifiers

What is the best humidity setting for a dehumidifier?

The settings on any dehumidifier can vary depending on the manufacturer or the brand. But what matters the most is the humidity levels you set on your dehumidifier. The humidity inside your home should always be between 30 to 50 percent. If the humidity percentage goes higher than 60 percent in any instance, the chances of developing molds and allergens become much higher.

Will a dehumidifier stop condensation on walls?

Dehumidifiers are pretty effective in removing humidity, and as a result, they also prevent condensation on walls and prevent them from becoming damp. 

How much humidity can a dehumidifier remove?

It depends largely on the type of dehumidifier and its capacity. Usually, a humidifier will remove humidity with 30 to 40 percent of its capacity rating. Ideally, a decent size humidifier removes around 3-4 liters of water every day.

Related article: How Long Should a Dehumidifier Run Per Day

Should you open windows when using a dehumidifier?

Opening your windows when there’s too much humidity inside can be really helpful as the air circulation reduces the stickiness produced by humidity. But if you’re using a dehumidifier, then I would strongly suggest not to open your windows. It will allow the outside moisture to come in, counteracting the purpose of the dehumidifier.

Parting Words

Dehumidifiers are among the most highly bought seasonal electric appliances. They have proved to be relatively effective in controlling humidity in your home. Dehumidifiers also prevent the growth of allergens and mold by controlling the humidity levels. A notable issue with dehumidifiers and the focus of this article is the amount of space they take up, hence justifying preference for wall-mounted dehumidifiers, which barely take any place inside your home.

In this article, we covered the top four wall-mounted dehumidifiers and air conditioners with dehumidifiers that are available in the market. Make sure to go through the entire buyers guide before you make a choice to buy any wall-mounted dehumidifier.

I hope this article will help you with choosing your new wall-mounted dehumidifier so that you can finally say goodbye to those sticky and irritating humid days (at least in your home).

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