Provide an adequate briefing on use of supplemental oxygen equipment.

Bottom line

The inspection should also include a thorough examination of the aircraft oxygen equipment, including available supply, an operational check of the system, and assurance that supplemental oxygen is in a readily accessible location. Demonstrate crew communications using the oxygen equipment, both between crewmembers (if more than one required pilot) and with ATC. Pilot masks sometimes allow greater oxygen flow than passengers’ masks, so it is important that pilots use the masks indicated for them.