STARFLEET DATABASE FILE: Environmental Suits

Environmental suits are worn by personnel to survive in conditions that are not considered to be "M" class. Some environmental conditions are not that different to M class, and so a light suit with breathing filter can be used. However, there are certain situations where the environment is too harsh for anything less than a full space suit to be worn. Such conditions are generally vacuums, though spacesuits are worn under other harsh environments, noteably "Demon" class planets.
 
Spacesuits have been used by Humans since the very first days of space travel were accomplished. The basic design has not changed much over the Centuries, but the latest spacesuits no longer require large cumbersom Oxygen tanks, which only have a finite supply of air. Nowadays, spacesuits incorporate miniature replicators to recycle the air used by the wearer and allows for a much closer fitting and lighter spacesuit all round, as well as allowing for much greater time in the suit before replacing it.
