Air filtration

Concealed within the chest cavity, this enhancement activates in the presence of harmful airborne toxins, rendering them ineffective. However, it has no effect against airborne radioactive contaminants. It has a secondary function also, which allows anyone so equipped to have an additional resevoir of oxygen which allows them to either be capable of surpassing the normal limits of physical exertion, such as sprinting for extended periods, or permitting them to survive without oxygen in the atmosphere for a short time.