Unclean Living

Unclean Living is a companion perk in the Fallout: New Vegas add-on Dead Money gained while Dean Domino is a companion.

Effects
This perk grants a five second window (instead of the typical one second) before taking damage inside a concentrated toxic Cloud, as well as reducing its health damage by 25%. The toxic Cloud concentrations deals 2.5% base health damage every 0.25 seconds - or effectively 10% base health damage every second. With Dean as a companion, this is reduced to 7.5% base health damage per second. This perk does not affect the passive three damage received every 20 seconds at exterior Dead Money locations in Hardcore mode.