Multi-lung

MULTI-LUNG - The Imbiber

The MULTI-LUNG is one of the 19 organs that are implanted into a Space Marine inductee to produce a Battle Brother

This additional lung activates when a Space Marine needs to breathe in low-oxygen or poisoned atmospheres, and even water. The natural lungs are closed off by a sphincter muscle associated with the multi-lung and the implanted organ takes over breathing operations. It has highly efficient toxin dispersal systems.