Immunity

All individuals are born with a varying grade of immunity against corrosion.

Protection
There are several means of protection against the corrosion sickness, the most common one being a corrosion mask.

Immunity Scale

 * 1) Can visit high-risk areas without a mask.
 * 2) Should not visit high-risk areas without a mask for a prolonged time.
 * 3) Should not go into high-risk areas without a mask.
 * 4) Should not go into exposed areas without a mask.
 * 5) Should not go into un-sterilized areas without a mask.