Filtration helmet

The Filtration Helmet is a unique Supervisor Helmet added to Fallout 3 with the add-on The Pitt.

It can be repaired with Supervisor Helmets and provides a damage resistance of 5 as well as a bonus of 10 to Radiation Resistance.

Obtaining
The helmet is rewarded by Everett after finding 20 Steel Ingots.

Another can be found on one of the raiders during the riot on the Free Labor quest if you side with Wernher.

Appearances
The Filtration Helmet appears only in the Fallout 3 add-on The Pitt.