Top smartphones can take amazing photos these days, but that’s not all their high-powered cameras can do.

“It affects every human cell, tissue and organ in ways we don’t yet understand.”

The smoke monitor can be set to run overnight to scan for danger while people sleep.

Ultimately, this is another way for phones to watch out for owners.

“MobilePhysics is the first step, a big step, towards solving this problem.”

Correction, Dec. 20:This story initially misstated how the Mobile Physics technology will be implemented in phones.