Holds a Master’s degree in Engineering and is keen on her own home’s climate. Sometimes we think that Carolina owns every single product she writes about – that’s how profound and insightful her reviews always are.
For 8 years, Richard had been working as an HVAC specialist and AC unit installer since his student years. Now, he’s our main consultant on every technical aspect that may arise during our tests and research.
Last updated: January 22, 2021
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Commercial dehumidifiers do differ from residential and household ones because they generally last longer, and are made for constant, heavy-duty use, making them perfect for not only those looking for a humidifier for their businesses and nightclubs but also for homes searching for superior, whole-house dehumidification. In this review we’ve collected a variety of different machines to find the best commercial dehumidifier for your needs.
When reviewing the best commercial-grade dehumidifier, you should consider its features and understand why they are important so you can better decide which model is the best for you. The coverage area will tell you if the machine can handle your space, the dehumidification performance will let you know if it’s up to the task of your building’s humidity level, and the dimensions, warranty, and whether there’s a pump will all help you to make a decision on the dehumidifier for you.
We spent many hours going over the specifications of various dehumidifiers, comparing their product features and reading every customer review to help you pick the model which will best fit your needs and space. We’ll break down our findings in a table with quick-to-find details as well as a more detailed review for those who are looking for the nitty-gritty, followed by a buying guide for those ready to purchase their own best commercial dehumidifier.
The Dri-Eaz F413 Revolution LGR Dehumidifier is our Editor’s Choice for the fact that it has an incredible coverage area of up to 7,000 square feet and an impressive performance. It means that the dehumidifier is great for larger warehouses, nightclubs, or other businesses.
It has a stackable design, making portability and storage easy, and also allowing it to fit into smaller spaces, like bathrooms, crawl spaces, or stairwells.
Even though it is a small and compact unit, it pulls as much water from the air as larger ones, up to 17 gallons a day (134 pints/day at saturation conditions).
It has an automatic restart, which makes it a great unit to use in areas prone to power outages, that way the appliance will pick up its dehumidifying once the power returns. It has a built-in automatic pump and comes with a duct attachment kit, though some users found that that the unit froze up too often for their uses, so it may be something to consider.
This Dri-Eaz is specifically designed for drying areas after spills or floods, limiting damage done to flooring and walls, especially in tight spaces like kitchens and bathrooms. Its humidistat allows users to set the humidity level of their space to prevent future mold and mildew build-up. It weighs 61 pounds, which some users might find heavy, but is actually fairly lightweight compared to other units and a number of customers have stated that their Dri-Eaz F413 Revolution LGR Dehumidifier has lasted for many years. It comes with a six-year warranty for the compressor and coils and an incredible lifetime warranty for the housing of the machine, which really can’t be beat.
Finally, the small dimensions on this model make it one of the best small commercial dehumidifiers you can find and would be one to consider for anyone who’s looking for a small machine.
The AlorAir 190PPD Commercial Dehumidifier is designed specifically for flood and water damage restoration, making it a perfect model for anyone trying to mitigate water damage, or for someone whose business or home is located in a flood-prone area.
It’s a compact dehumidifier, and is stackable, which means it works well in smaller spaces or businesses and is also great for easy transportation, especially if you have more than one. However, with a weight of over 75 pounds, some users found it too heavy, and it doesn’t come with wheels, which is an obvious drawback. But there is a fun bonus: this model comes in multiple colors, which can make it easier to keep track of for those who will own more than one unit, or who will have different units for different areas.
The AlorAir can hold up to 13.4 gallons and works in spaces of up to 2,300 square feet. It comes with a 19-foot cord, can dehumidify up to 190 pints a day at saturation, and tackle a humidity range of 35% up to 95%.
It has a rubber strip around the circuit board, making this model of a waterproof dehumidifier. You can even sink the unit in water, making it great for flood preparation or for anyone who is trying to clear an area with a few inches of standing water. On top of that, it includes epoxy coated coils, protecting them from corrosion. Because of this, the coils have an extended life, and it also protects them in corrosive environments while maintaining the heat transferring abilities of the coils.
The AlorAir has a “Hot Gas” defrosting system, making it easy and quick to defrost the coils.
It draws 5.5 amps on a 115V power supply, making it one of the more energy-efficient units. It has a digital humidistat control, timer, and condensate pump.
Finally, this unit comes with a five-year warranty for the compressor, evaporator, and condenser, making this a smart choice for anyone looking for the length of life of their small commercial dehumidifier.
The XPOWER XD-125 Industrial Commercial Dehumidifier is designed to remove more than 15 gallons of moisture a day, or 125 pints a day at saturation to quickly remove moisture and water from practically any space, preventing mildew and mold buildup at the start.
It has a recessed digital control panel that allows for advanced programming. You can set your chosen humidity level, and the machine will do everything on its own. It will then automatically purge water through the included drainage hose when full, which means you don’t have to monitor the collection tank levels for fullness, which makes it a good unit for dehumidification in any spaces the user may find difficult to reach regularly. It comes with a 20-foot drainage hose and can discharge up to a 15-foot distance vertically or horizontally, which means if you’re using it in a basement, this unit should have no problem pumping the water away from the flooded area.
This model uses standard refrigerant, which means it will function in temperatures between 33 degrees and 100 degrees Fahrenheit, making it a great until for places with a variety of weather and temperature conditions. It’s also capable of achieving a humidity range of 26% to 90%. If you’re looking for continuous dehumidification, you would just set the humidity level to be below 26% and the XPOWER XD-125 Industrial Commercial Dehumidifier will keep running, giving you the continued dehumidification you’re looking for.
The wheels are shock absorbing and semi-pneumatic, lending to fantastic ease of mobility, and the 25-foot power cord means you don’t have to search for a closer electrical outlet to plug it in, though it does require a 110/120-volt outlet and this model is not stackable.
The XPOWER XD-125 Industrial Commercial Dehumidifier is safety certified and comes with a one-year limited warranty. There are also optional ducting adapter kits, which will allow you to connect it to air scrubbers to form a full range air purification. It weighs 81 pounds, which isn’t light, but not too heavy, either, especially compared to other models. What is more, it has an Energy Star rating which further proves its energy efficiency.
Finally, there are onboard lights that illuminate when the machine is purging water, defrosting, or running so you’ll always know when and how it’s working with only a glance at the illuminated light panel.
The Maxx Air DH075 removes up to 145 pints of moisture a day at saturation. It’s designed for easy portability, which is why it comes with 12-inch wheels in order to make moving it from room to room, as needed, easy. It also features a folding telescopic handle for even easier portability, and the unit is stackable, in case your space requires more than one dehumidifier, or for easy storage of the units.
The model features a carbon air filter intake to remove impurities, and the automatic water pump comes with a hose that stretches 25 feet to make wastewater disposal quick and simple from even the most difficult-to-reach places like basements and crawl spaces.
The Maxx Air DH075 has an electronic control panel that allows you to program relative humidity and temperature operation settings along with an hour counter, though some users stated that the control panel can be confusing to use and learn at first.
This dehumidifier is designed specifically for water and flood damage restoration, making it a good fit for commercial spaces. There is no setup required at all, the user just plugs it in, chooses the settings they want, and the dehumidifier is ready to work, making it an easy choice for someone who has owns a business. It can also be easily nominated as the Best Commercial Dehumidifier for Nightclubs due to its high performance.
It weighs 85 pounds, which isn’t light but also isn’t as heavy as some other units, and because it has the wheels, the weight is less important because moving it is easier and doesn’t require as much lifting.
This model comes with a one-year limited warranty for parts and has a working temperature of 41 degrees to 95 degrees Fahrenheit. It’s a midsize unit, making it a good choice for someone who has a larger space, but not too large, though some users state that, while it’s not necessarily loud, it is noisy for the size of the machine so that may be a consideration for some people who would like continuous or long-term dehumidification.
The B-Air Vantage1500 is our Budget Pick, not just because of the price but because of its capabilities and performance, and the fact that it was designed without any fancy bells and whistles. It was made just to work easily and well. It’s a whole-house dehumidifier but also works great for removing water from basements, bathrooms, kitchens, and is an excellent unit for those plant lovers with plant rooms that need to keep their humidity regulated in order to keep their plants healthy and happy.
Because this machine can pair with air scrubbers, it’s an especially great dehumidifier for professional pet groomers who want to keep their workspace clean and dry for themselves and their clients’ pets and to eliminate the odors of wet pets.
The B-Air Vantage1500 can remove 76 pints of moisture a day at AHAM and 150 pints of humidity per day at saturation, which means when it’s paired with air scrubbers and movers it works really well to clean and fight mildew and mold growth.
This unit comes with a built-in pump, drain hose, and an electronic control touchpad. It is also available in three different colors, though it does not have an automatic restart, so if it loses power the user will need to manually restart it once the power has returned, which is a consideration if you plan to use it in hard to reach places, such as crawlspaces. It has a working temperature range of 33 – 100 degrees Fahrenheit and weighs 84 pounds, which is a touch on the heavy side but that is offset by the unit’s wheels for easy portability. The power cord length is a welcome 25 feet, so you don’t have to continuously move it, searching for an outlet.
Finally, the B-Air Vantage1500 has a one-year limited warranty and a five-year warranty for the housing. It is rugged enough to work on most construction jobs and withstand knocks and bumps.
The AlorAir Sentinel HDi90 comes with a Hot Gas Valve defrosting system, which helps the dehumidifier to work at low temperatures (temperature range is 33.8 – 104 degrees Fahrenheit) as well as allowing the unit to work continuously. This means it does not have to stop dehumidifying in order to defrost the unit, which saves energy and helps the machine last longer.
This dehumidifier has internal corrosion protection, an epoxy coating that protects the coils’ heat transfer abilities and helps prevent freon leaks, making this a great machine to use in more corrosive environments.
The AlorAir is specially designed for residential use, such as a basement or even a crawl space. Because it has remote controller capabilities for easy use, owners can feel comfortable putting this dehumidifier in a hard-to-reach location, such as a crawl space or attic, and use the remote to operate it, limiting the amount of crawling and contorting the owner may have to do to change the settings or operate the machine. Though it is important to note that while all units do come with the remote monitoring function, the remote controller itself is sold separately. But because of the remote controller capabilities this machine is the best commercial-grade dehumidifier with pump for basements because of that potential ease of use.
Unlike other dehumidifiers, though, this unit comes with a limited five-year warranty for the compressor, evaporator, and condenser, not just the housing, making it a great choice for users who are interested in machines that come with lasting warranties, especially since some users stated their units leaked within one year, though everyone who had an issue with their machine stated that customer service was excellent.
This dehumidifier has a coverage range of 2,600 square feet and has a capacity to remove 198 pints per day at saturation, or 90 pints per day at AHAM.
The built-in pump has a 20-foot lifting capability, making it easy to drain almost anywhere, and all the cables on the pump have “quick connect plugs” which means the maintenance and installation are simple and quick. It also has sound insulation, making it one of the quieter units, so users can set it and forget it, which is especially great for people who may want to use their machine for continuous dehumidification.
Finally, this item has a weight of only 57 pounds, making it one of the lightest commercial dehumidifiers available. It could be a great unit to move from location to location.
The BlueDri BD-130P is designed to remove up to double the water per day than most similar models. At AHAM it can remove up to 130 pints a day, which is fantastic, but at saturation it can extract up to an amazing 225 pints a day, making this little machine a beast of a dehumidifier, and especially good for water damage restoration use. Though this is a commercial unit and good for construction zones and buildings, it’s also great for residential use in basements and attics or wherever you might need it.
The BlueDri BD-130P will cover up to 1,500 square feet which means it can give whole house coverage to most homes to help eliminate mold and mildew and stop it from spreading. It comes with an automatic water pump, hour counter, electrical control with auto restart, and RH and temperature sensors, making it easy to use at any site or home. The humidity range is adjustable anywhere from 26-90%.
The drain hose is an incredible 38 feet long to easily direct the water away from the space it’s working, and the hose is stored in the front of the unit, making storage of the machine easier. The reusable filter is easy to remove and clean, saving you money and effort and also prolonging the life of your commercial dehumidifier.
It has a 25-foot power cord, so it’s effortless to find an outlet to power the unit, but it weighs almost 100 pounds, so some users might consider it too heavy to move, and that may limit its portability for others.
Finally, it comes with a two-year warranty for the technology, and a five-year warranty for the housing of the dehumidifier and many users stated that it is surprisingly quiet which could make it a great choice for continuous dehumidification purposes.
The Active Air Commercial Dehumidifier is a dehumidifier designed to work well in a small environment with a lot of moisture, making it our choice for the best commercial dehumidifier for large greenhouses. This model has a removable filter, so it’s easy to clean and maintain, extending the life of your machine as well as providing the best dehumidification results possible. This dehumidifier comes with an automatic restart option, which makes it a great unit to use with existing humidity controllers, such as a greenhouse or growing room with a lot of plants where it’s important to monitor humidity levels. This unit is heavy-duty, powder-coated, and has a metal casing.
The built-in defrost system kicks on at 32 degrees Fahrenheit, which reduces defrost time and increases the efficiency of the machine, though the working temperature range is a touch higher than some other machines, at 41-95 degrees Fahrenheit, so it may not be the best unit for colder locations even with the defroster, but does make it the best commercial dehumidifier for South Florida or other areas with warm climates.
It’s lightweight, at an amazing 53 pounds, and comes with four casters, making it easy to move around your space, as needed, which is especially handy because unfortunately, the drain hose is only four feet long. It will remove up to 100 pints of moisture per day at AHAM and has a coverage area of 861 square feet in a space with a ceiling of no more than ten feet in height.
The warranty conditions are, unfortunately, unclear, so if you’re worried that this machine may break down, then you may want to choose another option.
The Active Air Commercial Dehumidifier comes standard with a digital control panel on top of the unit, for easy push-button operation, making this machine ready to use at the touch of a finger.
What we liked:
User-friendly digital control panel
What could be better:
Smaller working temperature range
4-foot drain hose
Unclear warranty conditions
Relatively small coverage area
Things to Сonsider
Whether you live or work somewhere hot or cold, there’s always a chance of water damage. That’s when you will need a commercial dehumidifier to help you with water cleanup, or just to keep your business or home free from dampness, mold, and mildew and the scents that come with them. Knowing which commercial dehumidifier will work best in your space is really important. If you’re considering buying the best commercial-grade dehumidifier, the following guides can help you in your decisions.
How it’s better than a household one
Commercial dehumidifiers are different from residential and household dehumidifiers because they generally last longer, and are made for constant, heavy-duty use. They are often used by water remediation companies that go into homes or businesses to help with flood and water damage so that they can handle big, wet jobs. If you have a home that is constantly damp, or smells of moisture, a commercial dehumidifier might be a better choice for you.
Features to consider while choosing a commercial dehumidifier
The best commercial-grade dehumidifier is one that meets all your needs, including coverage area, dehumidification performance, pump inclusion, dimensions and weight, handles and wheels, warranty, and any extra features. The below qualities will help you choose the best small commercial dehumidifier to fit your needs.
Coverage area is one of the most important considerations when looking for the best commercial dehumidifier. If it doesn’t cover a large enough space, then you will need more than one unit for your home or business. And if it covers more than you need, then you may be wasting energy or money. For a commercial-grade dehumidifier that can cover up to an astonishing 7,000 square feet, check out our Editor’s Choice, the Dri-Eaz F413 model which would have no problem tackling the largest jobs.
The second most important feature when looking for the best commercial-grade dehumidifier is the dehumidification performance. It doesn’t matter how much space it can cover, or whether it has an internal pump or not if the dehumidification performance isn’t up to par. If your space is still wet or damp after using it, it isn’t the best choice for you.
If you’re looking for a commercial dehumidifier that can handle even the wettest jobs, check out our choice for Best Portable Commercial Dehumidifier, the AlorAir 190PPD Commercial Dehumidifier as it has a waterproof design, perfect for flooded locations.
A pump is important for a dehumidifier if you’re looking to actually extract moisture and water from the air or space and sending it away from your location. This will save you time and effort, so you don’t have to manually empty a fill bucket every time the dehumidifier is full.
Pumps are also really helpful for dehumidifying spaces underground, like basements, or hard to reach areas like crawlspaces, because they can pump water uphill or away from a small space. The XPOWER XD-125 Industrial Commercial Dehumidifier has a 20-foot drainage hose that can pump a 15-foot distance horizontally or vertically.
Dimensions and weight
If you’re trying to dehumidify a small space, then you need a dehumidifier that can fit in that small space. And if you have a large open area to dehumidify, then a larger, say, a 95-pint dehumidifier may give you the better performance you’re looking for. Weight, too, is important to consider, especially if portability is an important feature to you.
If you plan on purchasing a commercial-grade dehumidifier that you would like to move around, either to different rooms, or to different locations entirely, then wheels and handles are an important consideration to keep in mind. Some dehumidifiers weigh upwards of 100 pounds, so if they have wheels they can move easily despite the weight. The Maxx Air DH075 is a great bet with 12-inch tires and a foldable, telescopic handle making it easy to move between spaces.
Of course, we would hope that we will never need to use a warranty on our commercial dehumidifier, but sometimes accidents happen, and appliances that work in wet, or damp locations are exposed to corrosion and other environmental hazards which may affect the longevity of your machine.
For a dehumidifier with a great warranty look at our Editor’s Choice the Dri-Eaz F413 which has a limited six-year warranty of the compressor and coils and an amazing lifetime warranty of the housing! It really can’t be beat.
Extra features can push a good model over to the best commercial-grade dehumidifier. Length of hose and cord will make sure that you don’t have to move the dehumidifier around to find the location that allows drainage or power, a defrosting system will help extend the life of your machine, and easy-to-use digital control panels can help you achieve the settings you want.
For some great extra features, though, check out the AlorAir Sentinel HDi90 which has remote controller capabilities. Which, yet you have to purchase separately, but it makes it a dehumidifier that you can set and forget, accessing it via the remote controller when needed.
How to maintain a commercial dehumidifier
Maintaining your commercial dehumidifier is an important step in extending the life of your machine and making sure that it’s operating at peak performance for the life of the dehumidifier.
Overall, commercial dehumidifiers are low-maintenance appliances, but they do require a few things to keep them running well. Make sure that:
you’re removing the right amount of moisture from your space;
your dehumidifier is placed in the right location for its exhaust and requirements;
you clean and replace any filters, empty and clean the water container and/or drainage hose periodically;
you inspect and clean the condenser coils of frost or ice buildup (or purchase a model with an automatic defroster, such as the AlorAir 190PPD Commercial Dehumidifier) to make sure your dehumidifier continues running.
Following these steps will keep your commercial dehumidifier running for years.
AHAM stands for Association of Home Appliance. This is a measurement recommended by the AHAM. AHAM ratings are recorded at average conditions, which means 60 percent humidity at 80 degrees Fahrenheit. These measurements are meant to deliver a realistic picture of what you can expect when using your commercial dehumidifier.
If you’re looking for a model that can operate in cold temperatures, check out the Hydrofarm Active Air Commercial Dehumidifier which also features an automatic defroster, making sure the dehumidifier will continue to work once those low temperatures are reached.
They do not! All of the units on this list are portable commercial dehumidifiers, though some of them are designed for better portability than others. If that is an important consideration for you, check out the units that are stackable, have wheels, and are lightweight. However, some models, like the AlorAir Sentinel HDi90, can be ducted as well in case you need it to operate throughout your HVAC system.
Commercial dehumidifiers can help make your home or business more enjoyable to inhabit by removing dampness and preventing mold and mildew growth. They’re also a must-have when trying to remediate flood or water damage in a space like a basement or a crawlspace, or even a business like a greenhouse or nightclub. Whatever your needs are, there’s a commercial dehumidifier out there for you.
Our best commercial-grade dehumidifier is our Editor’s Choice, the Dri-Eaz F413. This dehumidifier has a coverage that cannot be beat, of up to 7,000 square feet. This unit can work in both large spaces and small. It also has the best warranty of all the featured commercial dehumidifiers, and it has compact dimensions, making it the choice for small spaces as well. An all-around great dehumidifier.
If you’re looking for a commercial dehumidifier that has easy portability, then check out the AlorAir 190PPD Commercial Dehumidifier. Though this unit doesn’t have wheels, it is stackable, making it easy to move more than one unit to different locations. It’s not too heavy, and it’s also the only featured commercial dehumidifier that’s waterproof, making it the machine of choice for cleaning flooded spaces.
Finally, if you’re looking for a Budget Pick, check out the B-Air Vantage1500. This dehumidifier was specifically designed without any fancy bells and whistles: it’s a machine that you can just plug in and trust to get the job done. It can remove up to 150 pints per day at saturation and works well for professional pet groomers to eliminate moisture in the air and the scents associated with wet pets.