From Pathfinder Lost Omens Gods & Magic, which isn't enabled.

Dreadsmoke Thurible

ITEM 9

Price 600 gp

Usage held in 1 hand

Bulk 1

This black-and-gray thurible is decorated with a skeleton motif; the jaw of one of the decorative skulls unhinges, allowing you to load it with incense as an action. A long, thin chain is connected to the top of the thurible.

Activate Interact; Cost incense worth at least 5 gp

Effect You swing the thurible around you, spreading inky black smoke in a 20-foot emanation that has the effect of Mist. Undead creatures can see through the smoke as if it didn't exist. Void energy also disrupts the magic of the smoke; anyone who uses a void effect, along with creatures affected by a void effect, can see through the smoke for 1 round.

Pathfinder Lost Omens Gods & MagicOGL