Airway supplies cover the second letter of M.A.R.C.H., keeping the path for air open in a casualty who cannot protect it themselves. Once massive bleeding is controlled, an obstructed airway becomes the next fastest threat to life, most often from an unconscious casualty's own tongue, and the interventions here range from simple positioning adjuncts any trained responder can place to surgical airways reserved for advanced providers. This category equips that full spectrum, scaled to certification.

Options here range across nasopharyngeal airways with lubricant, the standard field adjunct taught in TCCC, along with advanced airway and cricothyrotomy equipment for certified providers, from trusted trauma brands like North American Rescue and Safeguard Medical.

The scope-of-practice gradient defines this category more than any other letter. The NPA is deliberately accessible, sized against the casualty's nostril, lubricated, and placed with technique taught in a single training block, which is why it rides in nearly every complete IFAK; recovery positioning costs nothing and belongs in the same skill set. Surgical airway kits sit at the far end, extending certified providers into the rare casualty whose airway cannot be maintained any other way, and they belong only in kits carried by those hands. Buy the layer you are trained for, and train the layer you buy, because airway management rewards rehearsal more than most skills.

Stock the standard adjunct in nasopharyngeal airways, advanced equipment in surgical and IV supplies, and the practice reps in training equipment.