Which feature makes a chemical oxygen system safe even under severe impact?

The feature that ensures the safety of a chemical oxygen system even under severe impact is that it uses inert generators below 400°F. This design choice is critical because it prevents the potential ignition of combustible materials that may be present within the cabin environment. By maintaining a temperature below this threshold, the system avoids the risk of accidental ignition during turbulence or crash scenarios, which could lead to hazardous conditions or fire.

The inclusion of inert generators also emphasizes the use of non-reactive materials in the system, further enhancing safety. In harsh conditions, such as those experienced during severe impacts, the ability to produce oxygen without the risk of creating a fire hazard is paramount to ensuring passengers and crew can access emergency oxygen supplies without additional risks.

Other features, while they have their merits, do not specifically address the concerns associated with high-impact scenarios in the same manner as this temperature control does. The design considerations of chemical oxygen systems focus significantly on creating a safe environment for users during emergencies, making the management of heat generation a key factor in their overall safety.