This pertains to Cataclysm Classic.
The model of Deathmist mask is wrong. This helmet is supposed to be blueish, instead it is purple just like the dungeon set 1 helmet : Dreadmist mask.
This was an issue back in original cata and according to wowhead was not resolved until MoP was released. Can we please get this fixed? I would like to transmog this helmet.