As the coronavirus, wildfires, and dramatic heat waves continue to jeopardize public health, what can we do at home to limit the impact of poor air quality while giving a nod to sustainability?

The Importance of Ventilation
The wildfires are still not 100% contained and although the skies are bluer than they were in our area, we can't gauge air quality just by sight or smell. You can check the Air Quality Index (AQI) here. (Six categories range from 0 - 500, from "good" to "hazardous." Any number up to 50 is "Good.") Compounding poor air quality with the coronavirus is of particular concern as people start congregating more in gyms, schools, restaurants, etc. Studies indicate the coronavirus is primarily transmitted though air, and not just through large droplets sailing through the air. Visualizing the aerosolized, airborne virus as cigarette smoke will give you an idea for how difficult it is to contain and dissipate once it's out there. (Source) This is where filtration and ventilation come into play. Using HEPA (High Efficiency Particulate Air) filters in ventilation systems bumps up your protection, especially for those who suffer from asthma or allergies. See this WebMD slideshow for health effects of air pollution.

Air Conditioning
Air conditioners automatically filter air, but if you don't have AC at home, there are some simple things you can do to help keep out smoke or other particulate matter...