A recent study found that 80 percent of children sleep through smoke alarms. — -- While smoke detectors are credited with saving thousands of lives each year, some researchers suggest that you ...

When you move into or buy a new home, no one hands you a guide to how the smoke detectors work. They "chirp," which really means shriek loudly, and you occasionally have to put new batteries in them.

Optical-based smoke alarms use light instead. They are slightly better at detecting the large smoke particles created by slow ...