Ventilation Shaft (Phazon Mines)

The Ventilation Shaft is a room in the Phazon Mines, in the game Metroid Prime. It consists of a half pipe where Samus can use Boost Ball to get out. The first time this room is accessed, Puffers will come out of the vents and the air in the room will become toxic. Samus must use a Power Bomb when she gets it to open a hidden passage and turn the fan on so the Puffers crash agains the wall and the air becomes clean. She can then get an Energy Tank.