Household Air Monitors: Are They Any Good?

My second environmental health story for FairWarning, a nonprofit investigative news site that shares its stories with papers nationwide, is about ... well, it's a little hard to describe. Think I did it best in the first two grafs:
"For a huge swath of Northern California, the air suddenly became hazardous last November. Thick smoke from the most destructive wildfire in state history was delivering a secondary blow to nearly ten million Californians, some of whom turned to a new class of consumer air monitors to help keep them safe.
Public-health experts say such devices may play a role in reducing exposures to harmful pollutants like wildfire smoke — at least for those who can afford them and understand their limitations. Independent testing, though, has shown they might not work well enough yet to be worth the investment for most consumers."
Read the full story here.

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