In economy class, how many extra oxygen masks are provided with each group?

In economy class, the provision of one extra oxygen mask per group is designed to ensure safety in case of a cabin depressurization. The philosophy behind this practice is that the primary purpose of the extra mask is to account for potential situations where a passenger may need additional assistance or if there is an unexpected circumstance, such as a person falling ill or needing to help another individual.

By supplying one extra mask, the airline ensures that every group of passengers is sufficiently prepared for emergencies without over-complicating the situation or overwhelming the available equipment. The notion of providing more than one extra mask could lead to unnecessary complexity in procedures during an emergency evacuation. Thus, the allocation of a single additional oxygen mask per group is a thoughtful compromise aimed at enhancing safety while maintaining operational efficiency.