What type of safety equipment is mandatory on Frontier Airlines flights?

The mandatory safety equipment on Frontier Airlines flights includes life vests, oxygen masks, and first aid kits because these items are essential for passenger safety in various emergency scenarios. Life vests are crucial for water landings, ensuring that passengers can stay afloat until rescue. Oxygen masks are vital for providing oxygen in the event of a cabin depressurization, allowing passengers to breathe in high-altitude situations. First aid kits are necessary for addressing medical emergencies that may arise during a flight, enabling crew members to provide immediate assistance before further help can be obtained.

The inclusion of these items aligns with aviation safety regulations and standards that require airlines to equip their aircraft with comprehensive safety gear to handle a wide range of potential emergencies. Other options may list certain types of equipment, but they do not encompass the full range of mandatory safety provisions necessary for protecting passengers effectively in varied circumstances.