First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
Related
Irradiated Impurity Filter Game Data
Appearance
In the Appearances collection, Irradiated Impurity Filter is listed as Boss Drop. Appearance IDs: 117531, 117543, 117555, 117600. 1 other item wears the same appearance:
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Irradiated Impurity Filter Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Irradiated Impurity Filter suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Similar Items
The 3 items nearest to Irradiated Impurity Filter (item level 662) in item level among Armor > Leather, Head slot, from item level 545 to 610.
Irradiated Impurity Filter is part of the transmog set Crash of Fallen Storms (Monk only), which the Appearances collection lists in 4 versions. The other 12 pieces:
Blizzard numbers items as they are created, so the named items next to ID 237525 (237518 to 237530) were usually added in the same batch as Irradiated Impurity Filter: the same quest line, zone, vendor or reward set.
Lena Stormpike's SteinID 237518 · Quest"Even through tavern songs, she radiated her Light by lifting others' spirits."
Uther's Healing KitID 237519 · Quest"Uther's faith in the Light shone brightest when he was healing others."