Why DOAS Are Right for School Buildings

An estimated 70 percent of all school buildings have indoor air quality (IAQ) problems, leading to an unhealthy environment. Many common IAQ problems are associated with improperly operated and maintained HVAC systems, overcrowding, moisture incursion and dampness, and presence of outside air pollutants. IAQ problems have a greater impact on children than adults, as children breathe a greater volume of air relative to their body weight. This increases their sensitivity to indoor air pollution, resulting in greater susceptibility to airborne illnesses such as asthma and hypersensitivity pneumonitis.

Additionally, occupants of school buildings are close together, with approximately four times the occupant density in schools compared to office buildings. Mounting evidence indicates that the quality of a school’s physical environment affects educational achievement and more attention is now being paid to addressing IAQ issues.

With this in mind, the instillation of a DOAS system can dramatically improve a school’s indoor air quality, creating a happier, healthier and more productive environment for students, teachers and staff, and some systems earn valuable LEED points. DOAS systems condition up to 100 percent of outdoor air — improving air quality and reducing the load on other HVAC equipment in a building. This reduction in HVAC equipment load can result in significant savings in energy consumption over the lifetime of a system.

Humidity control is another great benefit of these systems. Human occupants and certain equipment in a school will generate moisture, but most moisture comes from the ambient conditions. If an uncontrolled amount of moisture is continually added to a building, a mold-friendly environment will result. Even if mold is not a concern, the moisture content in the air will affect the comfort level for students, teachers and staff. These and other benefits make DOAS systems the perfect choice for school buildings.

This article originally appeared in the issue of .

About the Author

Kevin Miskewicz is the director of Commercial Marketing with Mitsubishi Electric Cooling & Heating. He can be reached at [email protected] or 888/979-9686.

Featured

  • AP Construction Breaks Ground on Two Projects for Austin ISD

    Adolfson & Peterson Construction (AP) recently announced that it has broken ground on two renovation projects for the Austin Independent School District, according to a news release. The work at McCallum and Anderson High Schools totals 97,350 square feet and is scheduled for completion in January 2027.

  • Ancient Resilience: How Indigenous Intelligence Shapes the 4Roots Education Building

    As climate change intensifies, educational spaces must evolve beyond basic sustainability toward true resilience – we must design environments that can adapt, respond, and thrive amid shifting, and intensifying, climate hazards. Drawing on indigenous wisdom and nature-based strategies, integrating resilient design offers a path to create learning environments that are not only functional but deeply in tune with their natural surroundings.

  • Creating Long-Term Sustainability on College Campuses Through Fair Student Housing

    The quality of student housing can have a significant impact on an individual’s college experience. Today’s higher education institutions face mounting challenges, including declining enrollment, low retention rates between the first and second years, and a rise in student mental health concerns. Thoughtfully designed living spaces can help address these issues by creating environments that promote both academic focus and personal well-being.

  • Texas K–12 District to Build New Elementary, High Schools

    The High Island Independent School District on the Bolivar Peninsula in Southeast Texas recently announced that construction on a new elementary school and a new high school will begin in January 2026, according to local news. Funding will come from a $27.9-million bond passed in May 2025.

Digital Edition