What type of oxygen is supplied in the cabin aboard the E-190?

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Multiple Choice

What type of oxygen is supplied in the cabin aboard the E-190?

Explanation:
Oxygen for passengers on commercial jets like the E-190 is produced by chemical oxygen generators. When the passenger mask is deployed, a chemical reaction inside solid canisters releases oxygen on demand, providing breathable oxygen without needing bulky stored gas tanks in the cabin. This on‑demand system is designed to supply oxygen for the duration of the emergency, typically around several minutes, until the aircraft can descend to a safe altitude. Liquid oxygen or a vacuum would not be practical or possible for cabin use, and stored gaseous oxygen systems are not how passenger masks operate on modern airliners. So the cabin oxygen type is chemical.

Oxygen for passengers on commercial jets like the E-190 is produced by chemical oxygen generators. When the passenger mask is deployed, a chemical reaction inside solid canisters releases oxygen on demand, providing breathable oxygen without needing bulky stored gas tanks in the cabin. This on‑demand system is designed to supply oxygen for the duration of the emergency, typically around several minutes, until the aircraft can descend to a safe altitude. Liquid oxygen or a vacuum would not be practical or possible for cabin use, and stored gaseous oxygen systems are not how passenger masks operate on modern airliners. So the cabin oxygen type is chemical.

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