Ventilation in Schools

Why Ventilate Classrooms?

Students and faculty need to be provided with a environment where they can focus and excel at learning. The optimal environment would be a healthy, comfortable, and quiet space that eliminates virus spread and distraction due to uncomfortable conditions.

By helping to create optimal indoor environments, we can see a drop student and faculty absenteeism, and a rise in cognitive performance.

Taking into consideration guidance from government and prominent industry organizations, and utilizing available funding, we have the ability to change.

Let's Make the Change

By monitoring and testing the current conditions, we can benchmark and improve upon the ventilation rates while ensuring we meet code standards and consider enhanced ventilation solutions for optimizing performance in the classroom. 

Together, we can demand action from school boards, and those who design and construct institutional buildings (architects, engineers, design build contractors) to make the necessary changes.

CDC Guidance

According to the CDC, ventilation is one component of maintaining healthy indoor environments. Along with other preventative actions, ventilation can help reduce the likelihood of spreading disease. 

Ventilation systems should be regularly service and meet code requirements. Equipment should "provide acceptable indoor air quality, as defined by ASHRAE 62.1, for the current occupancy level for each space."



ANSI/ASHRAE Standard 62.1 and 62.2 are the recognized standards for ventilation system design and acceptable indoor air quality. 

"Standard 62.1 specifies minimum ventilation rates and other measures intended to provide indoor air quality (IAQ) that’s acceptable to human occupants and that minimizes adverse health effects. The standard provides procedures and methods for meeting minimum ventilation and IAQ requirements to engineers, design professionals, owners, and jurisdictional authorities where model codes have been adopted.

Since its original publication, Standard 62.1 has been revised and enhanced in ways that make it more than an air treatment and ventilation standard. To signify that indoor air quality goes beyond minimum ventilation requirements—and in recognition of those aspects of building systems (equipment, filtration, controls, and more) that contribute to acceptable IAQ—the title of the standard has been updated to “Ventilation and Acceptable Indoor Air Quality.”


CFD Analysis of Ventilation in Classrooms

CFD Analysis of Ventilation in Classrooms
Previous slide
Next slide

The global pandemic has highlighted the importance of indoor air quality and how innovative ventilation strategies can reduce the spread of diseases, saving lives. According to the Centers for Disease Control and Prevention (CDC), COVID-19, along with diseases such as tuberculosis, measles and chicken pox, is predominantly spread by airborne transmission. This is where small droplets and aerosol particles containing the virus are inhaled by a person, contaminate surfaces they touch or land on their eyes, nose or mouth. These droplets can remain in the air for hours and can infect people who are up to 1.8 m (6 ft) away.

To reduce the concentrations of these infectious droplets in the air, effective ventilation needs to be achieved. In fact, the World Health Organization (WHO) suggests that six air changes per hour (ACH) can significantly reduce the spread of viruses like COVID-19. There are two main methods of ventilation; natural and mechanical. Natural ventilation is driven by pressure differences within the building design and includes opening windows and doors.

Mechanical ventilation involves advanced heating, ventilation and air conditioning (HVAC) systems. These exchange stale indoor air with fresh filtered outside air and exhaust VOCs [Volatile Organic Compounds], CO2 and viruses. Effective HVAC systems also eliminate recirculation and cross contamination between airstreams.

We are proud to have worked with the Integral Engineering and Engys Teams to conduct a study on the affect CO2, the Age of Air, and ventilation methods can have on occupant health and wellbeing. 

Clean First Framework

Ventilation in Schools

For additional literature and continuous education, visit our Resources page.
To learn more or get in touch, contact us.