In a world of increasing wildfires and invisible irritants, we consulted experts to explain how to measure and correct air quality.

But with the help of my shiny Aranet4, the brand most indoor-air experts ... Still, because CO2 builds up alongside other pollutants, the levels are “a pretty good proxy for how fresh or stale ...

Ultimately, a good ... source of indoor CO2 is people themselves, as it’s a byproduct of our respiratory function. Coupled with poor ventilation, this commonly leads to high levels of CO2 ...

His goal is to promote awareness of aerosols in the transmission of illness, through the monitoring of carbon dioxide in indoor environments. High levels of ... often not as good as other spots.

Carbon dioxide (CO2) is a good indicator of ventilation in an indoor space ... For example, saliva and lung fluid contain elevated levels of bicarbonate, an alkaline. The pH of droplets expelled ...

Our more recent research, though, suggests that CO₂ levels in indoor air may ... survive longer in the air due to everyday indoor conditions. The good news? These findings suggest solutions ...

Good indoor air quality monitors do exist ... and that might well hold true for you as well. I already know that CO2 levels spike when I cook: I have a gas stove, so of course they do.

All of a sudden, people wanted them to help assess the safety of indoor ... the CO2 concentration to just 800 parts per million, a level widely identified as being a marker of good ventilation ...

Australia's National Construction Code specifies indoor CO2 levels should not exceed 850ppm ... particulate matter and carbon monoxide, which are good broad indicators of air quality.