Challenge indoor air quality
In March 2022 the Environmental Protection Agency (EPA) released the “Clean Air in Buildings Challenge.” It contains guiding principles and ways for building owners and operators to lower risks from indoor contaminants and pollution. In particular, the Challenge was created to lower the chance of spreading COVID-19, but the outlined suggestions are readily applicable for improving indoor air quality regardless of COVID-19.
The main actions in the Clean Air in Buildings Challenge include the following:
- Develop a clean indoor air action plan,
- Enhance fresh air ventilation,
- Improve air filtration and cleaning, and
- Build community engagement, communication, and proper education.
Indoor air pollutants can include tobacco products, building materials, household cleaning products, and excess moisture just to name a few. And simply because a source originates outside a building does not mean it can’t seep inside.
What you can do specifically
- Identify how clean air from outside is brought inside and circulated, especially if intakes are near a possible pollution source such as vehicle exhaust.
- Judge if you should manage the direction of air flow in more at-risk building areas.
- Ensure that air supply vents and return grilles are not blocked by furniture, boxes, or equipment. These all may affect air flow.
- Check that filters in window air conditioners and perimeter heating and cooling units are changed often.
- Close off any gaps around air filters. This can reduce air moving around them instead of through them.
- Increase ventilation and/or filtration in locations with greater emission of airborne particles and aerosols.
- Add portable air cleaners to increase air cleaning rates in places where air flow and central filtration lack.
- Quickly clean up water spills. Water can produce a suitable environment for mold and fungi to thrive, which can become airborne.
This is not a comprehensive list and only includes some of the more reasonable actions to improve indoor air quality.