Preoxygenation with a bag-valve-mask device did not reduce the risk for hypoxemia compared with preoxygenation with a face mask during emergency tracheal intubation in the emergency department (ED) or ...

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 ...

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 ...