Buyers Guide & Information

Best Commercial Dehumidifiers Reviewed

We have reviewed the best commercial dehumidifiers on the market. Compare the top brands for large scale air quailty control.

Compared to more portable residential dehumidifiers, commercial dehumidifiers are more reliable, more durable, and more capable of drawing greater amounts of moisture from the air. They’re great for commercial settings to keep customers and clients comfortable, but they’re also the go-to choice for homes with severe moisture damage.

Whatever your reasons for investing in an industrial dehumidifier may be, these commercial dehumidifier reviews can guide you in choosing the right one for your moisture removal needs.

Comes with Pump

Dri-Eaz 1200 Commercial Dehumidifier with Pump
Dri-Eaz 1200

Our Top Choice

ALORAIR Storm LGR Extreme
ALORAIR Storm LGR Extreme

Best Portability

BlueDri BD-76P-BLUE
BlueDri BD-76

Common Commercial Uses for Dehumidifiers

In terms of how they operate, commercial dehumidifiers are very similar to residential ones. They both pull moisture from the air, but the main difference is the size and coverage area. While the standard home unit is usually meant for a bedroom or bathroom, a commercial unit is the better choice for larger spaces, like crawl spaces, basements, etc.

Since it’s designed to be more rugged and powerful, commercial units are often used for repairing water-related damage. The best thing you can do after a flood, leak, or any source of water damage is to invest in a powerful commercial dehumidifier.

Residential vs. Commercial Dehumidifiers

It goes without saying that commercial dehumidifiers aren’t for everyone.  They’re stronger and more durable than residential units, but they’re also more expensive, larger, and heavier.

When choosing between the two, the main thing to consider isn’t whether the unit is for the home or for a commercial building; it’s the level of moisture you’re aiming to remove from the space. Even homeowners opt for commercial dehumidifiers when they go through dire moisture-related situations, like floods, water leaks, and busted pipes.

Commercial Dehumidifiers Compared

ModelPPDMax AreaTemp Price
Alorair Storm LGRSaturation: 190
Normal: 85
2300 sq. ft.33 – 105 FCheck Amazon
Dri-Eaz 1200 with Pump Saturation: 145
Normal: 64
3500 sq. ft.33 – 100 FCheck Amazon
BlueDri BD-76 Saturation: 150
Normal: 76
2000 sq. ft.33 – 100 FCheck Amazon
AlorAir Sentinel HDi90Saturation: 198
Normal: 90
2600 sq. ft.35.6 – 104 FCheck Amazon
Dri-EAZ F413Saturation: 136
Normal: 96
2000 sq. ft. 33 – 100 FCheck Sylvane

Check Amazon

Aprilaire 1870 XLSaturation: 1307200 sq. ft.50 – 104 FCheck Sylvane

Check Amazon

RINKMOSaturation: 296
Normal: 143
8000 sq. ft.41 – 100 FCheck Amazon
COLZER1406000 sq. ft.41- 95 FCheck Amazon

PPD = Pints per day

Buying Considerations for Heavy-Duty Dehumidifiers

Dehumidifier Type

The 2 most common types of commercial units are desiccant and refrigerant, and while they both remove moisture from the air, each one does it differently. Desiccant units work by passing air through a rotating desiccant wheel to extract moisture, and refrigerant units work by drawing moist air over a refrigerated coil with a fan.

According to a Humidity Control company from Australia, the main difference between desiccant vs. refrigerant is that desiccant “performs exceptionally well when used in cooler temperatures, or when a low dew point is required. In comparison, mechanical (refrigerant) type units are more economical at higher temperatures i.e., 30 degrees C.”

Temperature Requirements

The temperature of the surrounding air plays a major role in the type of humidifier you choose. For colder climates, you’ll want to go with a commercial desiccant dehumidifier. For higher temperatures and warmer climates, a refrigerant-based model is the better choice.

Coverage Area & Room Type

One of the best features of commercial units is that they generally have a large coverage area. This is measured in square footage, and you can expect the best commercial unit to cover thousands of square feet, even in spaces with high moisture levels.

Capacity & Extraction Rate

Dehumidifier capacity refers to the amount of water it can pull from the air per day. This is measured in PPD, or pints per day, and the PPD value is a lot higher in commercial units than residential ones. On top of that, extraction happens at a faster rate, which is especially useful if you’re dealing with water damage.

Ducted (HVAC) vs. Portable

A commercial HVAC dehumidifier is one that has been hooked up to the home or building’s HVAC system. A ducted unit is a good choice for whole-house dehumidification, but some people prefer the portability that comes along with a non-ducted unit. To decide on the one for you, consider whether or not portability is an important feature.


There’s usually a manual drainage design in smaller residential units that requires a user to empty the bucket every day (or every few days depending on humidity levels). Manual emptying isn’t as realistic for commercial units since they draw more moisture, have a higher capacity, and have a faster extraction rate.

For convenience, try to find a commercial unit that has automatic draining. That means the water will automatically drain, and you’ll never have to fret about emptying the heavy water-filled tank. Most auto drain systems only allow for gravity-fed draining, so if you know that you’ll have to drain the water upwards, find a commercial dehumidifier with a pump.

Other Features

Commercial units are designed to be rugged and heavy-duty, but that doesn’t mean they can’t come with other features for better convenience and ease of use. Look for added features like a filter indicator light, a built-in humidistat, low-temperature settings, digital controls, and quiet operation.

Price & Warranty

Anytime a product has the word “commercial” in the description, you can expect it to be relatively expensive. To ensure you’re getting the best value for money spent, choose one that comes with an extended warranty policy (ideally 5+ years) and always check to see what the policy specifically covers.

8 Best Commercial Dehumidifiers Reviewed

1. ALORAIR Storm LGR Extreme

Our Top Pick
Moisture RemovalSaturation: 190 PPD,
Normal: 85 PPD
CoverageUp to 2300 sq. ft.
Weight70 lbs
Operating Temperatures33 – 105 F
Drainage SystemBuilt-in pump (automatic)

The Alorair commercial dehumidifier is specifically designed for water damage restoration and floor repair. It’s powerful, removing up to 190 pints of moisture from the air per day when it’s saturated and up to 85 pints per day when conditions are average. Even with so much power, it’s highly efficient and can operate between 33 and 105 degrees F while drawing  5.5 amps on a 115V power supply.

The rugged design fits well in small spaces and is sized for up to 2300 square feet. It’s not the most portable commercial dehumidifier since there are no transport wheels, weighing about 70 pounds. However, the Alorair is designed with a stackable feature, which means you can securely stack one on top of another for even more power.

This dehumidifier comes with many useful features, like a digital humidistat control, timer, and condensate pump. The cETL design is completely waterproof, and you can even sink the unit in the water thanks to the rubber strip that keeps the circuit board sealed. This is an amazing feature for taking care of flooding and water damage.

With everything from a built-in pump to a washable MERV-8 filter, you really can’t go wrong with the Alorair. The only flaw is the lack of portability wheel and transport handles, but this isn’t such a big deal if you intend to use the unit in one place.

  • 5-year warranty on compressor
  • Auto humidistat control
  • Heavy-duty pump
  • Waterproof design
  • Compact
  • No transport wheels

2. Dri-Eaz 1200

Best Commercial Dehumidifier with a Pump
Moisture RemovalSaturation: 145 PPD,
Normal: 64 PPD
CoverageUp to 3500 sq. ft.
Weight80 lbs
Operating Temperatures33 – 100 F
Drainage SystemBuilt-in pump (automatic)

Even though the Alorair dehumidifier is built with a pump, it doesn’t quite match the performance of the Dri-Eaz DrizAir 1200 commercial unit. When it comes to pumping the water back out of the unit to make room for more, the Dri-Eaz is as powerful as it gets.

It’s built with an industrial-grade pump that can handle up to 145 pints per day at saturation and 64 pints per day under the Association of Home Appliance Manufacturers (AHAM) test conditions. It operates within a wide temperature range, anywhere from 33 to 100 degrees Fahrenheit. No matter where you prefer to pump the water, the DrizAir automatically moves the moisture into the sink or out the window with ease.

The main issue with a lot of commercial dehumidifiers that have a pump built in has to do with size. They’re generally larger than non-pump units, but this isn’t the case for the DrizAir. The polyethylene casing is sturdy, compact, and easy to transport thanks to the semi-pneumatic wheels for portability.

Aside from the powerful pump, another great feature of this unit is the straightforward control panel. Dri-Eaz is all about providing customers with a no-nonsense design that’s easy to understand, and that’s exactly what you’ll get from the DrizAir. Its touchpad control panel has a single digital display that includes on/off controls, a job hour meter, a reset function, and a purge control.

This isn’t the most affordable commercial unit available, but the easy maneuverability, sturdy construction, and powerful pump for water removal make up for that.

  • Sturdy transport system
  • Straightforward control panel
  • Powerful water removal
  • Easy to store
  • Dent-resistant casing
  • Costly
  • Not the most energy-efficient

3. BlueDri BD-76

Best Portable Commercial Dehumidifier
Moisture RemovalSaturation: 150 PPD,
Normal: 76 PPD
CoverageUp to 2000 sq. ft.
Weight81 lbs
Operating Temperatures33 – 100 F
Drainage SystemBuilt-in pump (automatic)

The only real flaw of the top product is the lack of portability features, so let’s focus on a portable commercial dehumidifier next. The BlueDri BD-76 is a highly portable unit that’s great for homes, basements, garages, job sites, or any industrial location with water damage. Even though it weighs about 80 pounds, it’s easy to move it from site to site thanks to the transportable dolly design.

Because this unit can remove a max of 150 pints of water per day, it’s a great choice for water damage restoration projects. It has a slightly lower extraction rate than the Alorair, but it’s still a solid choice for heavy-duty applications. The high-efficiency rotary compressor is reliable and durable, so needless to say, the BD-76 packs a powerful punch.

In terms of convenience features, the BlueDri company thought of it all.  This unit is built with an automatic water pump, digital panel, compact electrical control with auto restart, hour counter, and RH and temperature sensors so that you can get any job site done with just a few buttons. In other words, you’ll be able to set it and forget it.

The main flaw of the BD-76 doesn’t have to do with performance or durability but instead relates back to the warranty policy. For commercial use, you’ll get only 1 year of warranty coverage. However, the dehumidifier housing is covered for 5 years; it’s just the small parts and pieces you have to worry about.

  • Compact transportable design
  • Optional digital moisture meter
  • High-efficiency water pump
  • Super durable exterior
  • Short warranty on compressor
  • Not as powerful as Alorair

4. AlorAir Sentinel HDi90

Best Commercial Dehumidifier for Basements
Moisture RemovalSaturation: 198 PPD,
Normal: 90 PPD
CoverageUp to 2600 sq. ft.
Weight60 lbs
Operating Temperatures35.6 – 104 F
Drainage SystemBuilt-in pump (automatic)

If you’re looking specifically for a commercial dehumidifier for basement or crawl space, Alorair has another winner for you. The Sentinel HDi90 is designed to work perfectly in damp residential areas that could benefit from commercial-grade units, like basements and crawl spaces, and is capable of working in up to 2600 square feet.

Although it’s not the most attractive industrial dehumidifier available, it’s definitely powerful. The HDi90 has an extraction rate of 198 pints per day when the air is heavily saturated and 90 pints per day in normal to damp moisture conditions. This is the highest we’ve seen so far, explaining why it’s the go-to choice for basement water damage and flooding.

The main feature that sets this Alorair apart from other units on this list of commercial dehumidifier reviews is its hot gas valve defrosting system, HGV, for short. It utilizes a quick and efficient defrosting process that allows this unit to work at the low temperatures of 36 degrees without giving up on performance. The HGV system not only saves on energy but also makes the unit last longer.

Another nice feature of the HDi90 is that it offers commercial-grade performance, but it still fits well in the modern home.

The company says that “we designed this professional dehumidifier with the modern consumer in mind with all special features that make it the best for crawl space and basement applications, like HGV defrosting system, remote control system, low-temperature operation, etc.”

  • Strong 5-year warranty
  • Efficient defrosting system
  • 4 adjustable wheels
  • High extraction rate
  • Remote control operation
  • Bulky design

5. Dri-EAZ F413

Best Small Commercial Dehumidifier
Moisture RemovalSaturation: 136 PPD,
Normal: 96 PPD
CoverageUp to 2000 sq. ft.
Weight65 lbs
Operating Temperatures33 – 100 F
Drainage SystemBuilt-in pump (automatic)

Compact commercial dehumidifiers are hard to come by. Generally, the more powerful the unit, the larger it has to be, but this isn’t the case for the F413 by Dri-Eaz. This small commercial unit is portable and compact yet still has the power to remove up to 136 pints per day (17 gallons) at saturation and 96 pints (12 gallons) at normal conditions.

It moves air quickly with a CFM rating of 121 to 180, but the best feature by far is the compact dimensions of 17.6″ x 12.5″ x 21.5″ inches. How Dri-Eaz was able to fit so much power into such a small commercial unit, we’ll never know. But what we do know is that it’s easy to use, easy to transport, and highly effective for moisture removal in both commercial and residential applications.

The F413 comes with an automatic drainage system and built-in pump that lets you choose if you want the water to empty through the sink, toilet, or drain. It’s a great choice for drying out damp basements, handling unexpected leaks and floods, and just general moisture maintenance and prevention of water-related issues in the future.

The price tag is a lot higher on this one, but portability paired with power doesn’t come cheap. Although it’s not as powerful as the previous models in terms of moisture removal with its max extraction rate of 136 PPD, it’s 100% worth considering.

  • Small and compact
  • Easy-to-use control panel
  • Good air movement
  • Easy-to-replace filter
  • Highly versatile
  • Not as powerful as others
  • High cost

6. Aprilaire 1870 XL

Best Commercial Grade Dehumidifier for Whole House
Moisture RemovalSaturation: 130 PPD
CoverageUp to 7200 sq. ft.
Weight113 lbs
Operating Temperatures50 – 104 F
Drainage SystemGravity drainage (no pump)

Whether you live in a high moisture area, a location that’s prone to floods, or you just believe in smart moisture prevention, a commercial-grade whole house dehumidifier like the 1870 XL can get the job done. This unit from Aprilaire is expensive, but it has a massive coverage area of 7200 square feet, so you can rest easy knowing that every inch of your home is being protected against moisture.

If you don’t need a unit that’s quite that big (because let’s face it, not many of us live in 7200 sq. ft. mansions!) Aprilaire gives you plenty of options. They’ve also units for 2800, 3800, and 5200 square feet and allow you to choose based on pint rating as well. The highest extraction rate is 130 PPD, but a 70-pint and a 90-pint whole house unit.

No matter which size whole house unit you go for, these dehumidifiers are built to last. They come with corrosion-resistant aluminum coils and are designed and manufactured in the USA, so you never have to worry about cheaply made units from Aprilaire.

The easy drainage setup is another really nice feature that allows you to “set it and forget it.”  All you have to do is place a hose or place the dehumidifier over a drain, level it, plug it in, set the target humidity, and you’re done. The main drawback aside from the high price tag is that it does not come with a pump, so it’s only compatible with gravity-fed draining.

  • Durable components
  • Made in the USA
  • Large coverage area
  • Multiple configuration options
  • Well-known brand since the 50s
  • No built-in pump
  • High minimum operating temp


Best Commercial Dehumidifier for Indoor Pool
Moisture RemovalSaturation: 296 PPD,
Normal: 143 PPD
CoverageUp to 8000 sq. ft.
Weight107 lbs
Operating Temperatures41 – 100 F
Drainage SystemGravity drainage (no pump)

The Rinkmo commercial dehumidifier resembles a portable residential unit more than any other product on this list. It’s much larger than the average 50 or 70-pint units for homes but sits on a set of 4 rolling casters so that you can easily move it from the basement to the warehouse, even to the indoor pool. That’s exactly what many people use it for, mostly because it has the highest moisture extraction rate of up to 296 pints per day.

Indoor pool spaces are quite humid, so you’ll obviously need something more powerful than your standard dehumidifier. The Rinkmo is powerful, to say the least, with a fan that operates at 353 CFM and a maximum coverage area of 8000 square feet. These performance features are not only capable of handling indoor pools but also large commercial grow rooms.

This heavy-duty unit is actually extremely affordable, and some people even say that it’s the most attractive option for commercial dehumidification. It has a sleek white exterior that won’t hinder the look of your home or business, and it measures 19.5” x 15.7” x 32.5”, so it doesn’t take up too much space.

Similar to the Aprilaire 1870 XL, this unit is NOT built with an automatic pump. You can buy one separately, but chances are you won’t have to as long as you plan on gravity-fed draining. The drain hose is included, but if you do need a pump to drain the water upwards, you’ll want to go with the best commercial dehumidifier with a pump, like the Alorair top pick.

  • Ideal for high moisture spaces
  • Massive coverage area
  • Amazing value
  • Nice aesthetic design
  • Only allows for gravity draining
  • Heavy design over 100 lbs


Best Commercial Dehumidifier for Storage Rooms
Moisture Removal140 PPD
CoverageUp to 6000 sq. ft.
Weight50 lbs
Operating Temperatures41- 95 F
Drainage SystemGravity drainage (no pump)

It’s imperative to keep moisture out of storage spaces in order to keep all of your belongings protected from mold, mildew, odors, and other water-related issues. The Colzer 140-pint dehumidifier is a great choice for storage spaces for a few reasons.

First off, it has a high water capacity and a large 17-pint water tank. Although there’s no pump, the water can still be automatically drained through a long 6.6-foot drain hose. It’s a great “set it and forget it” option, which is exactly what you need for low-traffic areas like storage rooms and spaces.

The Colzer company put a lot of effort into this unit’s design, stating that “if you are looking for a beautiful-yet-powerful drying solution for your living room or office where keeping aesthetically nice is pretty important, you can’t go wrong with Colzer PD582A dehumidifier…”

One thing that this unit has that others don’t is a unique laundry setting. In addition to the standard dehumidify mode, there’s a functional Laundry Mode to quickly dry your delicate clothes that need to be hung to dry. The auto-swinging louvers help to improve and evenly distribute airflow, or you can direct the air in a specific direction.

The price is right, the design is appealing, and the overall performance is perfect for keeping storage rooms and other spaces moisture-free. To recap, the only real flaw for some is the lack of a built-in pump, but it still automatically drains the included drain hose.

  • Long drain hose included
  • Lightweight design
  • Unique Laundry Mode
  • Affordable
  • No built-in pump
  • Lower operating temp range

Dehumidifier Sizing Guide

When you look at commercial dehumidifier specifications for different models, you’ll quickly see that these units’ sizes are all across the board.

Sylvane says that to choose the right size dehumidifier, “choosing a dehumidifier based on the size of your space and its capacity alone isn’t enough. To find the absolute best solution, you’ll also need to consider your room’s conditions.”

So, in addition to square footage, think about how saturated the air is with moisture. Choosing the right size is all about looking at pint capacity as well as the dampness of your space.

Tips for Setting Up Commercial Dehumidifiers

For your new commercial dehumidifier to work effectively, you first need to install it properly. Commercial dehumidifier installation is a bit trickier than installing residential units, mostly because industrial models are larger and heavier, therefore more difficult to handle.

The first step is to choose the right location. CNET says that while some units “integrate directly into your existing HVAC systems and are powerful enough to handle houses thousands of square feet in size,” others rely on proper placement. An easy rule of thumb to follow is to always place the unit in the room and area that needs it most.

People Also Ask (FAQ)

Where can I rent commercial dehumidifier units?

Most home hardware stores allow you to rent commercial dehumidifier units by day, by week, and even by month. This is really convenient if you come across an unexpected water leak and need a quick solution, but before you go and search for “commercial dehumidifier rental near me” on Google, definitely consider whether buying one would be a wise investment.

Can I use an industrial dehumidifier in my home?

Absolutely, and a lot of homeowners do. Industrial dehumidifiers are an excellent choice for large basements and crawl spaces or any areas that suffer from excessive moisture or water damage. The only downside of using a commercial unit at home is that these aren’t designed to look as sleek and modern as residential units, so keep that in mind before placing it front-and-center in your home’s foyer.

Why do dehumidifiers need a defrost system?

Most dehumidifiers work similarly to a refrigerator by drawing moisture in and pulling it over a refrigerated coil to cool it down so that it can drip down into the tank as liquid water.

When the air in the room falls below a certain temperature, some of the water condensing on to the evaporator will turn to ice before it has time to drip into the bucket. If you were to look at the evaporator when this is happening, you would see the ice frosting on the coils, and that’s why dehumidifiers need a defrost system.

Are commercial dehumidifiers “install and forget it units”?

Honestly, it depends. If this is a commercial grow dehumidifier for an indoor crop, chances are you’ll need to check it every day to make sure everything is running smoothly. But for general moisture maintenance, many commercial units can be installed, set, and left to perform independently.

How much do these commercial dehumidifiers cost?

It depends on the size, coverage area, and brand, but generally speaking, commercial units cost anywhere from $1000 to $5000. If you’re on a budget, it’s possible to find an industrial model for around $800, but don’t expect to find anything less than this.

Where is a good place to buy these units?

Shopping online on sites like Amazon, eBay, and Home Depot is a convenient option since the unit will be delivered right to your doorstep, and you can start using it ASAP. If you choose to buy a commercial dehumidifier on Amazon or eBay from a third-party seller, just make sure the seller has a good reputation.


There are many great commercial dehumidifiers on the market designed for drying carpets, repairing flood damage, and general moisture maintenance. The best of them is the Alorair, especially if you’re looking for a unit for water damage restoration.