Patient being administered oxygen by a face mask with continuous positive airway pressure (CPAP).

Nurse wearing face shield and mask leans over some of the instruments used to perform a tracheostomy.

Illustration of a nasal catheter used by rescue teams during transport of victims. Arrows show direction of oxygen.

Three step procedure for applying a pocket mask to a victim. (Step 2) Fit mask over patient's nose and mouth and clamp mask to face, maintaining head tilt.

Three step procedure for applying a pocket mask to a victim. (Step 3) Exhale into mask until chest rises.

Bag-mask ventilation; one-person fitting technique; left hand holds mask; right hand seals contact areas of mask to face by pulling mandible up into mask.

Image showing the two-rescuer technique for Bag-valve-mask ventilation. While one rescuer creates a face-to-mask seal and holds the mask the other EMT squeezes the bag with two hands until the chest rises.

Face mask, ventimask