First aid station
From Halopedia, the Halo wiki
A First Aid Station, or a Medical Kiosk is a usable stationary terminal in Halo 3: ODST, that dispenses Optican Health Packs. A normal First Aid station contains two health pack sockets. Like most of New Mombasa's infrastructure, these stations are controlled by the city's urban infrastructure AI, the Superintendent.[1]
Gameplay
Since ODST and Marine personnel lack any form of energy shield, like that used by previous playable characters in the Halo series, health is much more important, and thus the Medical Kiosk is a critical part of gameplay. It works in a similar fashion as the Health Packs from the original Halo game, Halo: Combat Evolved.
Trivia
- There is also an achievement to use one for the first time in Halo 3: ODST. (Conjecture)