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8 Best Commercial Dehumidifiers Available in 2021

Last updated August 11, 2021

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Author
Author avatar Danny Ashton

Danny as been writing about air purifiers for 10+ years. He is a major fan of home technology, which makes him the perfect person to test and evaluate products for HouseFresh

Too much moisture and humidity in commercial properties such as warehouses and venues can be a real problem. Visible signs of mold and mildew, musty smells, and discolored patches on walls all let you know there’s an issue. 

Damp can be a health hazard for people working, any customers, and may also damage items and equipment. This can be anything from paper and card to electricals. Thankfully, investing in the right commercial dehumidifier can significantly reduce these problems.

Refrigerant dehumidifiers work by drawing in warm currents of air which then moves through refrigerated coils. Cool, dry air is subsequently released back into the space while condensation is maintained inside the unit. Desiccant dehumidifiers, however, operate using a sponge-like wheel that absorbs and removes moisture. Dry air is then propelled back out again. Whichever type you go for, the benefit of opting for a commercial dehumidifier is that it works harder than an average unit and can remove up to 150-250 pints of moisture in just a single day.

When picking out our top choices, we considered things like:

  • Tank size
  • Weight
  • Price

Room size is also an important factor when selecting your dehumidifier. The AlorAir Commercial Dehumidifier is great for areas up to 2,300 square feet. But if you’d like to find something to use in a bigger space, the RINKMO 296 PPD is ideal and covers 8,000 square feet.

To ensure we found the best commercial dehumidifiers to meet your needs, we used consumer reports analysis to remove any fake reviews. All our recommendations came from genuine people like you who have previously used and can recommend these models.

1. AlorAir Commercial Dehumidifier

The AlorAir Commercial Dehumidifier is specially made to remove moisture from the air every day, covering up to 1,200 square feet. Constructed from metal, with a metal exterior, the machine is built to last, even in harsh conditions. Not only can the dehumidifier work to remove moisture, but it targets odor and makes the room feel much cleaner just through its normal operation

The internal mechanisms of the dehumidifier are ready for harsh conditions as well, as there is an auto defrost feature to reduce ice buildup on the coils inside, making it possible for it to run in temperatures down to 36 degrees Fahrenheit. During the defrosting process, the dehumidifier will continue to run smoothly and function properly, providing an all-around better air quality. The dehumidifier is even more hands-off, as the tank drains all by itself, reducing the need to remove the tank and empty it by yourself.

  • Tank Size: 113 pints
  • Room Size Suitability: 1,200 square feet
  • Weight: 57.3 pounds
  • Special Features: Auto-defrost feature for ability to run at low temperatures

What we love

  • MERV-8 filter inside protects internal components from any dust buildup
  • Compact, equipped with a handle for easy transportation
  • Fit for areas as small as crawl spaces
  • Includes an optional remote control

We don't like this as much

  • Produces some fan speed noise, so is not ideal for designated quiet spaces
  • Filters require a bit of time to remove and clean

2. Waykar 130 Pints Commercial Dehumidifier

Great for large spaces such as warehouses, basements, or workshops, the Waykar Commercial Dehumidifier is capable of extracting up to 130 pints of water every day, working to improve the quality of air in places you never thought possible. On the machine itself, there is an ideal humidity setting that you can set, and the dehumidifier will use its auto shut off feature when it hits this humidity range. With this, you can assure that the machine will smartly assess your air quality and humidity levels and save energy and time when they have achieved your desired results.

If there is ever a loss of power in the case of a situation like a power outage, the machine will automatically restart and restore the set functions, making it one more thing you don’t have to worry about. The Waykar dehumidifier is designed to be moved, equipped with 4 wheels and two handles. With an easy drain feature, an included hose is available for gravity draining, and a “full tank” light will turn on when it is ready to be drained.

  • Tank Size: 130 pints
  • Room Size Suitability: 6,000 square feet
  • Weight: 58 pounds
  • Special Features: Intelligent Humidity Auto Control

What we love

  • Will not only prevent mold, but will remove it
  • Runs very quietly, allowing the noise to fade into the background
  • Made of a heavy-duty metal exterior, which will contribute to a longer machine life
  • Comes with a 24-hour timer that will allow power saving throughout the day

We don't like this as much

  • The control panel is always lit up; it may be more power efficient if it only activated when a button is pressed
  • The beeping noises made when filling or deciding settings are a little louder than necessary

3. Dri-Eaz Revolution LGR Commercial Dehumidifier

Working well in warm conditions, the Dri-Eaz Revolution LGR Commercial Dehumidifier is capable of removing 12 gallons a day at temperatures around 80 degrees Fahrenheit and 17.3 gallons a day at 90 degrees Fahrenheit. On the front of the dehumidifier, there is a display of important controls, such as the inlet and outlet temperatures, the relative humidity, and tracking of the job hours, making it easy to monitor how well the machine is functioning and improving the air in your space.

For greater ease of use, the dehumidifier comes with a 40-foot hose for easy tank draining, a 25-foot cord for portability, a high airflow filter for better and faster dehumidifying, and an easily followed owner’s manual. Overall, the Dri-Eaz Revolution LGR Commercial Dehumidifier is user-friendly, fast functioning, and perfect for any large area with fluctuating weather or temperature conditions.

  • Tank Size: 163 pints
  • Room Size Suitability: 180 cubic feet/minute
  • Weight: 65 pounds
  • Special Features: Recessed feet indents for quick and safe transport.

What we love

  • Can be set up for continuous drainage through the tube attachment
  • Works from 33 degrees to 100 degrees
  • Makes a noticeable difference in odor levels in the area
  • There is no need for manual tank drainage

We don't like this as much

  • May leak if the hose isn’t properly attached
  • We’d like to see some smart features, for example, WiFi connectivity, to help commercial property owners more easily analyze the statistics of the environment

4. ALORAIR Basement/Crawlspace Dehumidifier

Amazing for removing humidity from large areas while saving energy overall, the ALORAIR Basement/Crawlspace Dehumidifier is fit for removing 90 pints of water at AHAM conditions and 198 pints at saturation. The dehumidifier also has the power to cover 2,600 square feet, which is great for spaces like basements and garages. As said, this model removes the moisture from the air while using up to $250 less energy than other conventional dehumidifiers or by using other means of making the air in your home more comfortable. 

Inside, the dehumidifier has a heavy-duty condensate pump that will continuously move the water inside the machine in order to keep it running smoothly. Also inside, an automatic defrost feature is working to make sure your dehumidifier can work at temperatures as low as 36 degrees Fahrenheit. If there is any frost detected, the defrost cycle will run and make sure the frost is dealt with. This feature will also run while the dehumidifier is working, saving time and more energy in the process.

  • Tank Size: 198 pints
  • Room Size Suitability: 2,600 square feet
  • Weight: 57.32 pounds
  • Special Features: Energy saving technology saves money and electricity usage

What we love

  • Includes a washable filter that can be reused
  • Introduced the Rare Earth Alloy Tube Evaporator, which maintains coil heat to extend their lifespan
  • Instructions and all pieces needed for easy setup are included
  • Highly rated by Energy Star

We don't like this as much

  • Has an optional remote control but this has to be purchased separately
  • Tools are needed to attach the drainage hose

5. Aprilaire 1820 Pro Dehumidifier, 70 Pint Commercial Dehumidifier

Built to last through any conditions you can throw at it, the Aprilaire 1820 Pro Dehumidifier includes many special features, such as corrosion-resistant aluminum coils, working to make sure the dehumidifier will run smoothly for years to come. This machine will work to prevent mold, odors, and structural wood rot, even in sealed areas like a crawlspace. Not only this, but it will decrease the likelihood of pests such as termites, who thrive in damp areas.

With a compact size of about 12.5” x 25”, the Aprilaire 1820 Pro Dehumidifier will fit in many small areas that you may have not been able to manage humidity in before. With the ability to set a target humidity, an easy hose drainage system, and extraction of up to 9 gallons of water a day, this humidifier is perfect for any dehumidifying needs.

  • Tank Size: 70 pints
  • Room Size Suitability: 2,200 square feet
  • Weight: 56 pounds
  • Special Features: Humidity Auto Control

What we love

  • Helps to prevent warping in wood, such as floors and instruments
  • Maintains humidity below 60% of the survival rate for viruses and bacteria
  • When setting a target humidity, you can specify down to the 1%
  • Has an auto-shutoff feature for when target humidity is hit

We don't like this as much

  • Does emit an exhaust breeze that can be felt around the machine
  • A little on the noisier side, this shouldn’t be an issue if tucked out of the way

6. ALORAIR Commercial Water Damage Restoration Dehumidifier

The ALORAIR Commercial Water Damage Restoration Dehumidifier is designed to remove excess moisture from the air, preventing and restoring damage caused by water around your spaces. For situations such as mold and mildew, overall water damage, soggy carpet or furniture, this dehumidifier will work to restore the areas and reduce any overall water issues. 

Equipped with a digital humidistat control, a timer for easy usage, and a condensate pump, this machine makes it easier than ever before to manage and control water damage and water in the air. Not to mention, the entire unit is waterproof due to a rubber strip making the circuit board 100% sealed, meaning you can submerge it fully in water with no issues. 

Featured in the machine is also a Rare earth alloy Tube Evaporator, innovative and made to avoid freon leakage and extend the life of the internal coils, both of which will allow the machine to run more efficiently for a longer amount of time.

  • Tank Size: 180 pints
  • Room Size Suitability: 2,300 square feet
  • Weight: 70.5 pounds
  • Special Features: The unit is completely waterproof with a sealed circuit board

What we love

  • Small in size, it is easy to carry and can fit into small spaces
  • Comes with an extra-long power cord
  • Made with stackable design, great for running multiple units
  • Equipped with a side clip for easy cord and hose storage

We don't like this as much

  • Has a defrost feature for frozen coils, however it takes about 30 seconds to fully kick in when needed
  • Takes longer to dry out porous material, but will eventually remove the water damage over time

7. RINKMO 296 PPD Commercial Dehumidifier

Ready for faster, more efficient moisture removal, the RINKMO 296 PPD Commercial Dehumidifier is capable of removing up to 296 pints per day. Perfect for large spaces, this dehumidifier is ready for even the most humid conditions, protecting the areas and returning them to healthy air qualities. With the ability to hold 37 gallons at a time and cover up to 8,000 square feet, this unit is great for those who have very large spaces such as factories, warehouses, or large basements. 

A sleek, user-friendly interface with a touchpad LED screen makes using the machine easy, as you can set the target humidity levels, program a timer, set certain fan speeds, as well as monitor the working status and overall moisture levels. Auto on and off functions work to keep your room at your target humidity, auto restart serves as a fail-safe for any potential power loss, and an auto-defrost function makes sure to remove ice from coils, altogether making it easy to restore preferred humidity in your spaces.

  • Tank Size: 296 pints
  • Room Size Suitability: 8,000 square feet
  • Weight: 107 pounds
  • Special Features: LED screen with many functions and monitoring abilities

What we love

  • Has a sleek, white design that defies the stereotype of commercial dehumidifiers being unattractive to look at
  • Clean Reminder feature appears when filters or the machine may need to be maintained
  • Thin design makes the unit able to fit in small areas
  • Has a reprogramming feature in case any technical issues occur

We don't like this as much

  • The unit is very heavy, but it does come on wheels for easy maneuvering
  • Included drainage hose is a little short

8. Dri-Eaz 1200 Commercial Dehumidifier

With a straightforward design for easy usage, the Dri-Eaz 1200 Commercial Dehumidifier is great for any large moisture removal jobs you may have. With up to 18 gallons of water removal a day, this machine works to quickly get rid of any uncomfortable air quality or moisture damage. 

Designed to be stacked in multiple units, it’s a breeze to use identical units in conjunction with one another. A hot-gas bypass function works to quickly defrost any potentially frozen coils, and the electronic touchpad controls make it extremely user-friendly. The Dri-Eaz 1200 Commercial Dehumidifier is also equipped with two large back wheels and a pull-up handle, so it can be moved and positioned like you would a hand wagon or suitcase. With these features, it is no longer necessary to pick up the unit, but you can roll it to the intended location instead.

  • Tank Size: 144 pints
  • Room Size Suitability: 12,000 cubic feet
  • Weight: 80 pounds
  • Special Features: Has back wheel and pull up handle for easy transport

What we love

  • Works to dry areas quickly after events such as leaks and floods
  • Control pad has only two main buttons making it easy to program
  • Built with heavy usage in mind
  • Drainage hose can be stored in the back of the machine

We don't like this as much

  • Quite heavy, but does not need to be picked up often
  • Doesn’t have any controls for moisture monitoring or target humidity

Frequently Asked Questions

What is a Commercial Dehumidifier?

A commercial dehumidifier takes the normal function of a dehumidifier, that being to control the humidity levels in a target space, and scales this up to a larger area, for example factories, warehouses, and stores. As opposed to their household counterparts, commercial dehumidifiers remove up to 150-250 pints of moisture from the air every day.

The humidity that occurs in a space such as a warehouse can be devastating if left unchecked, damaged goods as well as enabling mold and mildew to grow. Removing it with a device such as a commercial dehumidifier is beneficial for keeping your space operating as intended and free from health risks.

What are the Types of Commercial Dehumidifiers?

There are two types of commercial dehumidifiers, both of which work differently to get rid of excess moisture. First, there are Desiccant Dehumidifiers, which use different types of water trapping material to absorb the moisture. The porous material, which is often silica gel, traps the water, and dried air is pushed back out of the ducts.

The other kind, Refrigerant Dehumidifiers, works to condense the water and drain it instead of trapping it, turning it into liquid and allowing you to drain it. In these machines, some coils are used to condense the water and other coils are used to push the warm air back out.

What Are Commercial Dehumidifiers For?

Commercial dehumidifiers are great for large spaces such as warehouses, large basements, venues, or any other large area that may be affected by excess moisture. Though they are more heavy-duty, they are fit for home usage as well, especially if you have a basement, garage, or even a crawl space that needs help controlling moisture and its issues such as mold or mildew. Since they are more heavy-duty, they are much less attractive for home use, however buying these for more discrete placement, such as an unfinished basement or garage, would serve a commercial dehumidifier well.

Which Dehumidifier is best for you?

Though all dehumidifiers will work to remove moisture from the air and water damage from things around your space, the type of functions offered by each dehumidifier is well worth considering. In some cases, it may be better to get a unit that provides you with a more in-depth reading of the humidity in your room, such as providing the ability to set target humidity or monitor moisture.

You may want a hose that is long so you can run it out the window into your yard, or one that is short to make connecting your machine to a drain or bucket simpler. Some machines are thin and small, which makes them excellent for smaller areas like crawl spaces or attics, and some are larger and cover a greater area, making them good for large basements or warehouses.

Overall, you should assess your needs in your space. The size, drainage, compatibility, and overall moisture control are important, and will all need to be decided by surveying your own areas.

Recommended Units:

Budget/Smaller RoomsAlorAir Commercial Dehumidifier
Mid-range RoomsWaykar 130 Pints Commercial Dehumidifier
Larger RoomsRINKMO 296 PPD Commercial Dehumidifier