Schools and Classrooms

PROBLEM: The transmission of communicable diseases via airborne pathogens, such as the SARS-CoV2 the virus that causes COVID-19, can more easily occur in school environments that lack proper ventilation.

SOLUTION: HealthyAir® systems with eHEPA® technology function to improve indoor air quality by reducing the concentration of airborne contaminants including viruses (such as SARS-CoV2 the virus that causes COVID-19), bacteria, mold spores, and allergens.

HealthyAir® Ventilation Systems

The following Healthy Air® Ventilation and Air Purification Systems offer an ideal solution for the capture of ultra-fine airborne contaminants in classrooms and other school facilities:

Filtration of Indoor Air in Classrooms

Air filtration in classrooms and school facilities can help mitigate long-range airborne viral transmission by removing SARSCoV- 2, and other pathogens, from any air that is recirculated through the building.

Ceiling-Mount and Portable air purifiers with high-efficiency particulate air (HEPA) filters may be useful to reduce exposures to airborne droplets and aerosols emitted from infectious individuals in buildings, and the HealthyAir® patented eHEPA® (electrostatic enhanced HEPA) improves upon standard HEPA filtration by augmenting the standard HEPA filter with an electrostatic field.

By applying electrostatic charge to incoming ultra-fine particles, including submicron virus, and then polarizing the fibers of the HEPA filter with additional charge, electrostatic forces enable eHEPA® to achieve a higher filter rate. Additionally, the 10kV electrostatic field deactivates microorganism that pass through the ionization field and causes the destruction of microorganisms that are collected on the filter media.

Ceiling-Mount and Portable air purifiers are typically most effective in smaller spaces, and one metric to consider is the clean air delivery rate (CADR). The CADR reflects both the amount of air that a unit can process per unit time and the particle removal efficiency of the filter. A helpful rule of thumb is that for every 250 square feet of space, a CADR of about 100 cfm is desirable

CADR is not the only factor to consider. Portable air cleaners vary in their ability to circulate air in the room, so not all devices with the same CADR rating are equivalent. Devices that provide better mixing of the indoor air can capture particles from more of the room’s airspace and are therefore preferred. Because potential viral sources could be in various locations within a room, it may be beneficial to have several units that meet the target CADR values rather than a single larger unit.

References - Recommendations for Combatting COVID-19 in Schools
1. Centers for Disease Control and Prevention - Operating schools during COVID-19: CDC's Considerations

2. Harvard School of Public Health - Risk Reduction Strategies for Reopening Schools

  • Flush Mount 2'x2

  • Easy To Replace Filters