10 Best Commercial Dehumidifiers of January 2021

  1. Product Highlights
    • Intelligent control- humidity auto control: simply adjust to your ideal moisture setting, it will smartly sense room humidity and control dehumidification to maintain pre-set humidity levels. automatic shut off/on: shuts off automatically when the room humidity reaches the setting humidity and restart to working again when the humidity is above. power outage auto restar...
    • Continuous and manual drainage - auto drain: this dehumidifier is included with a with 6.56 feet(2m) long drain hose. simply connect with drain hose, it will continuous drainage by gravity, just set your desire humidity (10-90%rh) and it will automatically turn off when it reach the point. manual drain - when the 5l water tank has reached maximum capacity, the "full tan...
    • Large capacity commercial dehumidifier-this commercial dehumidifier is with a high-efficiency compressor can remove up 130 pints water per day, suitable to use in large area, warehouse, grow room, basement, garage, cellar, workshop, library, laboratory and small factory, etc
    • Portable design for large space- this is a portable dehumidifier designed with the sleek and modern look. with four universal casters and two ergonomically placed handles, you can move this dehumidifier easily in your area
    • Support- this waykar 130 pint dehumidifier commercial dehumidifier is covered with 30-days money back if you are not satisfied with the product, 1 year warranty, 2nd year warranty extension and lifetime expert tech support. please don't hesitate to contact us if there is any question, we will reply to you within 12 hours and help you solve the problems. waykar customer ...
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  2. Product Highlights
    • Automatic defrost-a quick and efficient defrosting process, truly makes the dehumidifier able to work at a low temperature (36 degrees fahrenheit), if frost is detected on the coils, an automatic defrost cycle runs to avoid frost build-up and issues associated with that build up. makes the unit work continuously and efficiently without periodic stopping during the defro...
    • Designed for the modern home-for your full satisfaction, we designed this professional dehumidifier with the modern consumer in mind, all special features make it the best for crawlspace, basement, and commercial applications, auto defrosting system, optional remote control system, merv-8 filter, low-temperature operation, c-etl, and energy star listed.
    • Energy star certified dehumidifier-quickly and effectively removes moisture with less energy than conventional dehumidifiers without racking up your energy bill, saving you money. this will be the best crawl space/basement dehumidifier you will ever use. remove 55 pints per day at aham condition,120 pint at saturation, up to 1,300 sq. ft, fit for any basement, crawl spa...
    • Internal corrosion protection-an advanced technology to minimize corrosion and freon leakage, as you know in dehumidification applications, there always get oxide, hydroxide, or sulfide, normal coils get corrosion and freon leakage quickly, this innovative feature extends the life of the coils by providing protection against, maintaining the coil’s heat transferability.
    • 5 years warranty-energy efficient & safety tested our sentinel hd55 dehumidifier is energy star certified and is fully compliant with the electrical safety etl. every alorair dehumidifier comes with a 5-year warranty with a local professional customer support team ready to assist at any time. if you have any questions, please feel free to contact us, you deserve the bes...
  3. Product Highlights
    • 👍[super convenient usage] this high-quality dehumidifier simply adjusted to the ideal humidity setting to minimize moisture and reduce odor. the merv-8 filter can protect internal components from dust when dehumidifying. the most convenient point is that you are not requested to pour away the water every hour like a normal domestic dehumidifier, there is no tank inside,...
    • 👍[same fit for crawl spaces & basements] we designed this professional dehumidifier with the modern consumer in mind, smaller size, compact design, rugged handle, easy and safe to transport from job to job, and even from downstairs to upstairs. all special features make it the best for crawlspace, basement, and commercial applications, auto defrosting system, optional r...
    • 👍[113 pint dehumidifier] alorair sentinel hd55 commercial dehumidifier can removal 113 ppd at saturation, 53 pints per day at aham, up to 1,200 sq. ft, lowering the humidity to comfortable levels in a short period of time. on the other hand, this etl listed dehumidifier is made of a metal outer casing that withstands more rugged conditions, ensuring long-term use and ea...
    • 👍[auto defrosting system] the auto defrost is important, as ice buildup on the dehumidifier’s coils can cause the units to malfunction. alorair commercial dehumidifier can truly make dehumidifier able to work at the low temperature (36 degrees fahrenheit), makes unit work continuously and efficiently without periodic stopping during the defrosting process, not only savi...
    • 👍[5 year warranty and strong local service team] 5 years warranty-we believe in quality and after-sales-service, all our high-quality alorair basement/crawlspace dehumidifiers are made for your full utilization. it is sure to last long and still keep its shape look, even in some cruel commercial uses. your 100% satisfaction is with 5 years and a great after-sales-servic...
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  5. Product Highlights
    • 💧「intuitive control panel」a big full-function touch-pad control panel with humidity and temperature digital reading takes the guesswork out of operation. adjustable fan speeds, 24-hour auto on/off timer, and customizable outlet air direction add more flexibility, plus child lock for safer daily use.
    • 💧「2 drain option」this large room dehumidifier with a large capacity water reservoir (17-pint) and advanced full tank alert system with auto shut-off prevents overflow. plus, this basement dehumidifier with drain hose (6.56 ft) included offers an option of automatically continuous drainage by gravity.
    • 💧「140 pints dehumidifier」capable of removing 140 pints moisture from the air per day (twice as 70 pints dehumidifier), this commercial-grade dehumidifier is ideal drying solution for large basements and any other wet areas up to 6,000 sq ft.
    • 💧「unique laundry mode」besides the conventional dehumdify mode, this home dehumidifier features a functional laundry mode to quickly dry your delicate clothes that require hang dry. the auto-swinging louvers help to improve airflow or direct the air to a specific direction for optimal results.
    • 💧「stylish & portable」with an aesthetically pleasing outlook, this compact commercial dehumidifier fits neatly and decoratively into your living room, office, and even commercial places like showrooms, museums, and libraries. the easy-rolling caster wheels make moving this portable dehumidifier a breeze
  6. Product Highlights
    • Easy-to-use dehumidifier: plug it in, set the target humidity, this smart dehumidifier will auto-stop when the set humidity level has been met and auto restart when the room humidity raises up again or even after a power interruption. this dehumidifier with a drain hose (6.5-ft) allows you to simply attach the hose to achieve self-draining by gravity.
    • Ideal dehumidifier for crawl space & basement use: with the compact size and a strong handle, this portable dehumidifier is easy to carry from room to room. with a peak noise level at 52 db(a), you can be worry-free to have this quiet dehumidifier running whenever and wherever you need it. optional remote control, it is also a good choice for sound insulation and saving...
    • 120 pints energy star dehumidifier: with a removal capacity of up to 55 pints of water per day (under 60%rh @ 80°f condition), 120 pdd at saturation,this energy-efficient dehumidifier is ideal to dehumidify damp space up to 1,300 sq ft, like attics, basements, crawlspace, laundry room, garages, and even commercial use, you can maintain a healthy 45%-55% humidity range e...
    • Hgv-defrost & power-outage-restart for hassle-free operation: hgv defrost function eliminates maintenance and allows this durable room dehumidifier to use in a cold environment low to 33.8°f. this basement dehumidifier is also designed to restart in the event of a power interruption.
    • Support- your satisfaction is our priority. all baseaire dehumidifiers are covered with a 5 year warranty and lifetime expert tech support. if there is any question, please don't hesitate to contact us, we will reply to you within 24 hours and help you solve the problems.
  7. Product Highlights
    • ✅ higher cfm fan: fan operates at 353 cfm, allowing greater moisture removal rate (37 gallon), greater area of coverage (8,000 sq ft), and even faster moisture removal out of damp furniture and walls, great for leaks or floods cleanup, water damage restoration, and construction drying.
    • ✅ optimized drainage: ① auto: include a 3.28 ft drain hose for continuous draining by gravity. ②manual: a 3.17-gallon large capacity bucket matches perfectly with the removal rate. this commercial grade dehumidifier will auto stop to prevent overflowing when the bucket is full.
    • ✅ superior moisture removal: a high-efficiency compressor ensures the maximum moisture extraction of up to 296 pints per day (143 ppd aham), being heavy-duty commercial dehumidifiers for large basements, industrial warehouse, workshop, greenhouse etc.
    • ✅ advanced control for effortless operation: a large touch-pad led control panel offers great convenience for humidity setting and monitoring, timer programming, fan speed selecting, and working status reading. this large room dehumidifier will auto on/off to maintain the room humidity around setpoint, auto restart after a power failure, auto defrost when coils iced up,...
    • ✅ updated compact design: though with high removal capacity, rinkmo pd1201a is much more compact than the conventional industrial dehumidifiers. measuring at only 19.5(w)x15.7(d) x32.5(h) inches, packed with 4 casters, 2 side-recessed handles, and storage housing design, this restoration dehumidifier allows for more flexibility with transportation, placement and storage.

Your Guide To Buying a Commercial Dehumidifier

Yehudah Posnick

There are a number of situations where an industrial-strength, commercial dehumidifier is what you need. For example, if a house has become flooded due to storm conditions or a pipe bursting, you have to dry out the affected area--fast! The damage that the water can cause can be catastrophic if left untreated. There can be damage to curtains, walls, floors, and carpets, as well as mold and mildew that might start to spawn. It’s essential that the rate of dehumidification should exceed the rate at which the water evaporates into the air. That way, you have a chance of getting the water out of the affected room.

Alternatively, an industrial-strength dehumidifier may be essential if you have a greenhouse of plants that grow best in a controlled environment. A dehumidifier will take in the greenhouse’s air, and send it out at the desired temperature and relative humidity. This will ensure that plants that grow in precisely the environment that they need. It will also reduce the chance of humidity-related plant diseases, damaged yield, or the spawning of insects and other pests. That also reduces the need to apply pesticides--sparing you needless expense, as well as the health risks involved in using pesticides.

We’ve composed this buyer’s guide to help you make the right decision when selecting a commercial dehumidifier. It'll help you:

  • Choose the right type of commercial dehumidifier,

  • See useful tips about that particular type of commercial dehumidifier,

  • Read reviews of different commercial dehumidifiers, and what customers are saying,

  • Select the right brand of commercial dehumidifier, and

  • Compare prices and find the best deals.

Types of Commercial Dehumidifiers

The dehumidifiers that consumers usually buy are capable of maintaining humidity levels in the home.  Most of them are condensing-type dehumidifiers. They use a refrigerant to chill metal fins, as in an air conditioner or refrigerator. A fan then draws humid air over the cold fins. When the moist air hits the fins, the water vapor in the air condenses on the fins and collects in a reservoir.  Depending on the size of the room and the dehumidifying requirements, you’ll see units that can remove 30, 50, or even 70 pints of water per day.

But there are commercial dehumidifiers that are capable of much more--some, such as the Maxxair, can remove 145 pints per day! And for greenhouse owners, there are special dehumidifiers, such as those made by DryGair, that can remove 95 pints of water per hour!

We can distinguish between the types of refrigerants that the different dehumidifiers employ:

  • Conventional Refrigerant Dehumidifier: These are also known as “Relative Low Grain Refrigerant” dehumidifiers. The name is referring to a measure of the water vapor molecules in the air, measured in grains per pound, or GPP (as we’ll see later on). The refrigerant is run through a coil, which cools it below the dew point. This causes water vapor in the air to condense on the coil, where it then collects in a reservoir. These conventional refrigerants will lower the humidity to the desired level of 40% relative humidity, and are adequate for everyday maintenance.

  • Low Grain Refrigerant (LGR) Dehumidifier: These are capable of getting the grain per pound level below 34 GPP. This refrigerant will continue to remove water vapor even when the relative humidity goes below levels where a conventional dehumidifier will turn off.

  • Super Low Grain Refrigerant (SLGR) Dehumidifier: These work by lowering the air temperature even lower, before it encounters the coil with the cold refrigerant. This removes even greater amounts of water vapor. The AlorAir Storm SLGR will remove as much as 160 pints of water per day, at 80 degrees and 60% relative humidity.

We can also distinguish between the purpose of the dehumidifier:

  • For greenhouses: The Enviroboss EB140 80-Pint Commercial Dehumidifier is designed for greenhouses, to prevent accumulation of mildew and mold. It can remove up to 16 gallons of water per day--128 pints!

  • For industrial-level cleaning and restoration: These are for situations where a home or basement has suffered flooding. Many of these are portable so that you can wheel them to an affected area. The AlorAir is an example of a compact dehumidifier that is adequate for dealing with flooded basements and crawl spaces.

What reviewers say

  • Display: If you’ll run your dehumidifier in a basement or garage, you’ll want a clear display, so that it’s easy to check the humidity and temperature settings, even in poor lighting.

  • Set it and forget it: As opposed to dehumidifiers for the average consumer, commercial dehumidifiers need much less maintenance. The filter of a consumer dehumidifier should be cleaned once every two weeks. But the filter on the Aprilaire 1830 Dehumidifier doesn’t need to be cleaned more than once a year! People are pleased with the fact that an industrial dehumidifier can hold up longer--people who used to replace their simple dehumidifier once a year can now run their industrial dehumidifier for five years straight without any servicing.

Important Features

  • Desired humidity levels: It’s advised to keep humidity below 60%, so as to prevent spawning of mold and mildew. Reducing humidity below 50% is adequate to prevent the proliferation of dust mites. Although you typically won’t want to lower the humidity more than 45%, you’ll see that commercial dehumidifiers will go well under 30%. This is to remedy an emergency situation, such as flooding due to heavy rains or a water main break.

  • Get the dehumidifier according to the area of the room: You should consider the room size when purchasing a dehumidifier. The Dri-Eaz F515 PHD 200 Compact Dehumidifier is suitable for rooms as big as 15,000 cubic feet!

  • Equipped with pump: Since it will be removing substantial amounts of water from the air, you’ll surely want a commercial dehumidifier that is equipped with a pump. This way, you can be sure that the condensed water will be disposed of properly down the drain or sink, even against the direction of gravity. The Perfect Aire 1PACD150 Damp2Dry Commercial Dehumidifier has a 40-foot long hose to dispose of the condensation.

  • Some dehumidifier terms:

    • Relative Humidity: This is the percentage of water vapor in the air, relative to the maximum amount of water vapor that the air can hold at the present temperature. That’s why you’ll see different performance levels of the same dehumidifier, depending on the temperature. For example, the Mounto Commercial Compact Dehumidifier will remove 125 pints of water per day at 90 degrees Fahrenheit and 90% relative humidity, and 80 pints per day at 80 degrees Fahrenheit and 60% relative humidity.

    • Dewpoint: This is the temperature at which the air is saturated with water vapor, to the extent that the water vapor starts to condense. For instance, you’ll see that water condenses on the outside of a glass of cold drink, especially on a hot day. The glass’ temperature has reached dewpoint.

    • GPP: This stands for “grains per pound”. A water vapor level of 55 grains per pound is equal to 40% relative humidity. But low grain refrigerants will reduce the grains per pound even lower. They can get it down to 40 GPP--less than 30% humidity! The AlorAir Relative Low Grain Refrigerant can get the GPP down to 32!

    • AHAM: This stands for “Association of Home Appliance Manufacturers”. They test air purifier’s ability to clean tobacco smoke, dust, and pollen from a room.

    • PPD: This stands for “pints per day” that a dehumidifier is capable of removing. As we have said, 70 PPD is typical for a consumer model, while commercial models can remove 140 PPD.

    • CADR: This stands for “Clean Air Delivery Rate”. This is a measure of the efficiency of an air purifier, considering room size and the volume of clean air produced per minute.

Top-Rated Brands

Dri-Eaz makes industrial strength dehumidifiers, as well as devices that help you dry out your house after a flood or overflow of water. Their compact yet powerful appliances remove fumes, mold, and mildew from the air, as well as ventilate closed areas such as basements or garages.

AlorAir makes dehumidifiers for both basement and crawlspace configurations, as well as for flood and water damage restoration situations. They also make air movers, air scrubbers, and high-pressure washers.

PerfectAire was founded in 2009, and are makers of room and mini-split air conditioners, dehumidifiers, humidifiers, microwaves, refrigerators and freezers, and more. They make commercial and residential dehumidifiers, both with and without pumps, for a variety of room sizes.

EnviroBoss make dehumidifiers for greenhouses and food processing environments that depend on serious humidity control to eliminate mold, mildew, and pests. They also make air movers that are intended to distribute air so as to evaporate excess moisture.

BlueDri, located in Irwindale, California, are makers of water damage restoration equipment and dehumidifiers since 2008. Their products include air movers, air scrubbers, and commercial-strength dehumidifiers.

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