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Everything You Need to Know about Commercial Dehumidifiers

Everything You Need to Know about Commercial Dehumidifiers

What is a Commercial Dehumidifier?

A commercial or industrial dehumidifier is an appliance that reduces the level of humidity to improve the indoor air quality of your space. Commercial dehumidifiers are very powerful and can remove between ~150-250 pints of moisture from the air per day. 

Ideal Uses

Commercial dehumidifiers are ideal for extra large spaces such as warehouses, manufacturing facilities, greenhouses, supermarkets, hospitals, indoor gymnasiums, large basements, or venues. They are also great for any large area affected by humidity, flooding, water leakage, or natural disasters.


Improved Air Quality & Comfort: When an office building or warehouse has excess humidity, it can increase the amount of dust and pollen in the air. This can potentially affect the health and well-being of employees. In addition, if you suffer from allergies or asthma, it can become difficult to breathe. Using a dehumidifier to remove moisture and reduce particulates can lead to improved comfort and productivity of employees and all occupants in the building.

Inventory & Equipment Maintenance: A commercial or industrial dehumidifier can be an essential part of maintaining your inventory and equipment. For example, if you are in the food manufacturing business, the excess moisture in the air can cause dry foods to spoil from mold or bacteria growth. Temperature regulation can help increase and maintain the shelf life of your edible and non-edible products.

In addition to this, a commercial dehumidifier is also great for conserving tools, equipment, and machinery. Most hand tools and equipment in warehouses, garages, construction sites, and workshops are made of iron or steel which can be susceptible to rust. Controlling the humidity in the air is the best way to avoid corrosion and damage to your tools and equipment!

Managing relative humidity can also ensure that paint better adheres to walls, furniture, cars, and more. A dehumidifier can speed up the paint drying process and prevent paint from bubbling or cracking.

Prevent Mold & Mildew: One of the common reasons consumers purchase dehumidifiers is because they help prevent the growth of mold and mildew. For businesses, these unwelcome pests can damage products, equipment, walls, flooring, and reduce air quality. In addition, mold and mildew can also become hazardous for the health of employees and customers in the building. Once the growth of fungus has started it can be difficult to clean, especially in extra large spaces such as supermarkets, gyms, and hospitals. A commercial dehumidifier can help prevent mold and mildew from taking hold, avoiding costly clean-up and mold remediation.

Flooding Cleanup: Flooding and water damage from harsh weather conditions can lead to rotting wood, mold and bacteria growth, rusting of steel, swelling of woods, and de-laminating of materials such as plywood. This can be very destructive to business processes and lead to losses in inventory, property, equipment, and other capital. Commercial dehumidifiers can remove from 150-200 pints of moisture per day in the air which is extremely effective for the effects of flooding.

How to Choose the Perfect Commercial Dehumidifier

The most important factors in determining the perfect commercial dehumidifier for your space are the size of your space (sq. ft.), the room temperature, and relative humidity (RH).


Dehumidifiers remove the excess water measured in pints per day, and the sizing of your room can impact the performance or moisture removal rate. You can use this as a guide to help you classify the approximate size of your space:

  • 150 Pint Commercial Dehumidifiers are ideal for spaces up to 8,500 sq. ft. (large basements, venues, gyms, garages, workshops, sheds)
  • 200 Pint Commercial Dehumidifiers are ideal for spaces up to 11,000 sq. ft. (offices, large gyms, greenhouses, small construction sites)
  • 250 Commercial Dehumidifiers are ideal for spaces up to 15,500 sq. ft. (hospitals, warehouses, supermarkets)

Use this chart as a guide to help you choose which Perfect Aire commercial dehumidifier is perfect for you!

Product Features

Common product features for dehumidifiers include:

BUILT-IN PUMP: An included pump makes moisture removal simple and convenient by directing the excess water to a sink, tub, or even outside!

AUTOMATIC DEFROST: This feature prevents the evaporator from freezing (hot gas bypass) to protect the unit, ensure that there is no product damage, and increase the longevity of the dehumidifier.

DURABLE POLYETHYLENE HOUSING: This allows the commercial dehumidifier to be able to withstand impact and harsh conditions such as flooding while still being lightweight.

HEAVY DUTY TIRES: Hefty “never flat tires” are a great feature for warehouses, garages, or workshops where there are tools and equipment that can potentially lead to tire punctures.

WASHABLE FILTERS: Filters that are washable can be reused and are a more eco-friendly option for businesses. Reusable filters also eliminate the cost of having to purchase replacement filters.

STACKABLE OPTION: Some commercial dehumidifiers have a stackable design to place one commercial dehumidifier safely on top of another in order to save space. The Perfect Aire Damp2Dry Commercial Dehumidifiers in 200 Pints (2PACD200) and 250 Pints (1PACD250) include the stackable design.

BUILT-IN DUCT ATTACHMENT RING: Easily connect a vent hose (often sold separately) to direct the heated exhaust air and assist in water evaporation.


Commercial Dehumidifiers can range from $1,000-$2,000 per unit depending on the pint size of moisture removal and the product features. However, commercial dehumidifiers offer a high return on investment by protecting a businesses’ inventory, equipment, air quality, employees, and customers.

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