Hazmat suit

A hazmat suit is a full-body garment designed by the Tau'ri to protect the wearer from hazardous materials, biological agents, or radiation. The suits usually contain a breathing apparatus to provide the wearer with clean, uncontaminated air. These are not to be confused with the MOPP suits worn often by military personnel, and are carried by SG teams when they venture off-world.

Both the Atlantis Expedition and SG teams are often seen wearing hazmat suits when they know they are entering an area or dealing with materials that are contaminated or harmful in some way, but the suits are more commonly worn by civilian personnel. Teal'c is often exempt from wearing the suit, as his symbiote is able to protect him from more harmful materials than a Human.