This video is no longer available. The Hyattsville Volunteer Fire Department has had special pet oxygen masks available for about a decade, so Nick Seminerio didn’t hesitate to use it while responding ...

The oxygen masks that drop from airplane ceilings during emergencies contain enough breathable air for roughly 12 to 15 minutes—a fact airlines don’t exactly advertise in their cheerful safety ...

If you've ever traveled on an airplane, you know that masks can drop down to supply oxygen in the case of an emergency. Airline oxygen masks have about a 15-minute supply and typically fall when an ...