Oxygen tank

Oxygen tanks can be found throughout the game and should not be confused with the special infected tank. They can be picked up with the Use key (default: E or"X" for Xbox 360) and blow up with an explosion similar to a pipe bomb when shot. A player can not shoot while holding an oxygen tank, but can still melee. There is no inventory space for this weapon, so the only method of transporting it is to pick it up and carry it.Like the gas can this weapon is usually found during mini-finales and the finale, but it can be found around some parts of the middle maps. The oxygen tank does not have as much power as a propane tank, but players should take caution, since it can be ignited while a player is holding it. When shot, it spurts flame from the hole made before exploding.

The oxygen tank can be found easily in The Hospital. Oxygen tank can also be found in ambulances (there is one located in front of the emergency room).