Interest in air filters and purifiers is spiking in Southern California, including questions about how to build a homemade air purifier. Getting clean air is the latest challenge for residents who ...

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Designed by engineers Richard Corsi and Jim Rosenthal during the COVID-19 pandemic, the Corsi-Rosenthal box can be built for about a quarter of the cost of some commercial air purifiers, and can help ...

This is a developing story. For the latest local updates head to LAist.com and sign up for breaking news alerts. Interest in air filters and purifiers is spiking in Southern California, including ...

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A large area of greater Los Angeles had unhealthy air Friday, due to particulate matter from large wildfires. Here are tips for breathing cleaner... This is a developing story. For the latest local ...