Air purifiers are a great tool for improving your indoor air quality. You could also invest in a sensor just so you know what you are working with. Adding fans to enclosed areas is another way to prevent irritants like mold from building. Here are 9 products worth investing in if you are worried about the air you breathe:

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily more accurate.

The fresh air came after days of acrid smoke from wildfires, but officials warned that conditions could rapidly worsen again.