The suit provides 1,000 Radiation Resistance and an additional 98% radiation reduction, resulting in it providing more Radiation Resistance than a full suit of power armor. While wearing the suit, the Sole Survivor will be nearly immune to all external radiation damage, including gamma guns. However, it takes up every armor slot and provides no protection from ballistic or energy damage.
The damaged suit has metal strips patching up the suit's helmet.
- Four suits can be found on chem lab workers in Marowski's chem lab above Four Leaf fishpacking plant.
- Two hazmat suits can be stolen from the Triggermen at the end of the quest The Big Dig.
- Two in the reactor level of the Mass Fusion building: one in the locker room, and one on top of a safe in a small office next to the decontamination airlock.
- Two suits can be found on a table in the room before the prototype in the Switchboard (aka Slocum Joe's basement) during the quest Tradecraft.
- One in the Cambridge polymer labs, sitting on a shelf in section C4.
- One at Hugo's Hole, near Dunwich Borers.
- One suit can be found in the backyard bunker in West Everett Estates. It can be found immediately upon entry, sitting on a shelf on the right.
- One in a locker, located in the room with the glowing first mate, south entryway, on the Yangtze.
- May be sold by Becky Fallon in Diamond City.
- Fort Hagen hangar underneath the Fort Hagen satellite array, next to some shelved barrels of radioactive material. One can also be found inside the
- Starport Nuka. One in a broken display case on the second floor of
Damaged hazmat suit
- One damaged variant can be found on the reactor level of the Mass Fusion building in the open drawer of a blue console, which is directly in front of the windows to the decontamination airlock.
- One damaged variant can be found in Cambridge Polymer Labs, in the southwestern-most room (the room immediately left of room C4), on the first floor of the room where the player character first encounters the feral ghouls.
- Cranberry Island as part of the unmarked quest. Two damaged variants can be found in a bunker on
- It protects against the toxic gas in the decontamination area of HalluciGen, Inc. and the gas near the end of the Nuka World gauntlet.
- Although a full suit of power armor yields a higher radiation resistance, wearing a hazmat suit reduces more radiation damage than any power armor, even ones with lead plating.[verified]
- Independent of location or time, the visor of the hazmat suit will have a reflection of an unknown location in Boston during daytime inside of any trader menu. This is most notable at Fallon's in Diamond City. This is also true when you toggle from POV mode to third person.
- It does not extend the time the wearer can swim underwater before having to surface for air.
Behind the scenes
The color and design of the hazmat suit closely resembles the spacesuits used by the Soviet Union during the Cold War.