Async Hazmat Suits are normaly worn by Async inside the Backrooms.
Types:
There are 3 types of Hazmat suits, the most common is Type A, which is worn by Async Researchers. Type A is yellow colored, oxigen tanks and M17 Gas Masks are normally worn inside the suit. Second type is Green Type A, which is the same as yellow Type A. Green Hazmat is normally worn by Async supervisors (Motion Detected, Pitfalls, Reunion, Damage Control, Lighting and Tile Survey).
Type A
Supervisor’s suit (Type A)
Last type is Type B, which was only worn by Mark Blume in Reunion video. Type B is the most tactical suit worn by Async.
Type B