How many passenger supplemental oxygen masks are located on the ERJ 175?

The correct answer is that there are three passenger supplemental oxygen masks located on the ERJ 175. This aircraft is equipped with multiple oxygen masks to ensure that in the event of cabin depressurization, all passengers can receive supplemental oxygen. Typically, these masks are strategically placed to cover as many passenger seats as possible, thereby enhancing safety and providing essential support during emergencies.

The design of the ERJ 175 allows for efficient deployment of these masks, ensuring accessibility as needed. The presence of three masks indicates that the aircraft is prepared to address the oxygen needs of all passengers effectively, reflecting industry standards for safety and passenger care. Understanding the location and number of supplemental oxygen masks is crucial for cabin crew and passengers alike, as it plays a key role in emergency preparedness.