Outdoor Make Up Air Dehumidifier unit

Air quality in your home, office or industrial facility is greatly affected by ventilation systems throughout the building. Ventilation applications help to control excess moisture, temperature, and odors in the building by introducing dehumidified, heated or cooled fresh air from the outdoors.

Without fresh air from the outdoors, your air quality may still be poor. 100% outdoor air dehumidifiers solve this problem by providing filtered, dehumidified, and heated or cooled air directly from the outdoors into your space. This injection of fresh air, known as “make-up air” can ensure the comfort and safety of residents and workers alike. 

What Is Make-Up Air?

Make-up air, also called replacement air, helps to replenish the stale, contaminated air in indoor environments. It is especially critical to refresh the air in environments where excessive heat or moisture exist while evacuating the contaminated air using high-powered or industrial exhaust systems. Rather than creating a vacuum where unsafe or unfiltered air can be pulled back into the environment, many companies incorporate make-up air systems into their ventilation plans. Present day ASHRAE codes prevail in all commercial buildings and many multi-use residential buildings in use today.

Make-up air is filtered and dehumidified outdoor air that fills the space evacuated by your exhaust system with safe, breathable air. Not only does it help to prevent the buildup of harmful odors caused by mold or mildew and other particulate matter, make-up air makes it easier for you to control the temperature and humidity of the space. By incorporating both filtration and dehumidification in make-up air units, you can maintain a comfortable indoor temperature and moisture level while controlling heating and cooling costs.

Make-Up Air 101

Common Applications of Make-Up Air/Outdoor Air Dehumidification

In addition to possibly reducing your energy costs and protecting workers’ and residents’ welfare, make-up air helps protect products and equipment, and structural components from the corrosive effects of excessive moisture. Dehumidified make-up air keeps excess moisture from entering the environment, thereby enhancing the service life of your equipment and protecting the building’s overall structure. 

In warehouse and distribution settings, make-up air also protects consumer goods and products from exposure to environmental conditions that can compromise product quality. In fact, many businesses and residential facilities have recognized the health and cost benefits of using make-up air. Some of the most common applications for make-up air systems include:

  • Warehouse
  • Office Buildings
  • Schools and Hospitals
  • Industrial Facilities
  • Commercial and Industrial Kitchens
  • Paint Booths
  • Fitness Facilities
  • Packaging hygroscopic materials
  • Many more applications where excessive moisture is problematic

DCA 100% Outdoor Air Dehumidifier/Make-Up Air Solutions

At Dehumidifier Corporation of America (DCA), we have the knowledge and experience necessary to produce highly effective 100% outdoor air dehumidifier and make-up air solutions for everything from residential homes and small offices to heavy-duty industrial operations. We offer a full line of make-up air units that range in size from 1.5 tons to 30 tons, with a capacity of 200-7000 CFM. 

Our state-of-the-art 100% outdoor air dehumidifiers are designed for efficiency. Each system is created to remove excess moisture from outdoor air before it enters your air conditioning system. With pretreated make-up air, your AC will be more efficient and also be better able to control mold and mildew build-up on the coils and in the ductwork, thereby reducing your energy costs while protecting goods and equipment and creating a healthier atmosphere for everyone. 

Engineered with your specific application in mind, each of DCA’s custom systems has unique features tailored to your space, indoor conditions, and outdoor environment. We offer both air-cooled and water-cooled systems, for optimal dehumidification to meet your particular needs. In addition, our systems can be designed to use a variety of sources, from geothermal energy to cooling towers, chillers, process water, and city water. 

100% Outdoor Dehumidifier Options

DCA offers a variety of configurations and design specifications to meet the requirements of your space, including: 

  • Horizontal and vertical configurations
  • Indoor and outdoor installation (horizontal configurations)
  • Rooftop curb-mounting
  • Water source cooling


Contact Us for Your Dehumidification Needs

Whether you need a small 100% outdoor dehumidifier for your new office construction or a large-scale industrial make-up air system, DCA’s highly trained and experienced engineers can design the perfect make-up air system for your needs. We work closely with your consultants, engineers, and mechanical contractors to create commercial dehumidification solutions to meet both industry standards and government regulations. 

Contact the experts at DCA today to learn more about our make-up air solutions, or request a quote for your next project!

Topics: 100% outdoor air dehumidifiers