Wildfire smoke leaves harmful gases in floors and walls − air purifiers aren’t enough, new study shows, but you can clean it up

When wildfire smoke turns the air brown and hazy, you might think about heading indoors with the windows closed, running an air purifier or even wearing a mask. Getting rid of these gases isn't as simple as turning on an air purifier or opening a window on a clear day. In a new study published in the journal Science Advances, colleagues and I tracked the life of these gases in a home exposed to wildfire smoke.