Bag mask ventilation (BMV) is a method for providing a person with immediate ventilation in an emergency. BMV involves a medical professional manually pumping oxygen into a person’s lungs using a self ...

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 ...

Wearing a mask is not dangerous, and it won’t affect your breathing. A doctor put this to the test, recording himself and monitoring his blood oxygen level — as he layered on six masks. As ...