pf2e.fyi
From Pathfinder Lost Omens Cheliax, Infernal Inheritance, which isn't enabled.

Swing the Censer

ACTION
MANIPULATE
Activity 1 action
Frequency once per 10 minutes
Requirements You are holding your censer implement.

You swing your censer in a wide arc, causing the smoke it issues to thicken. Until the start of your next turn, creatures within the smoke are Concealed, and all creatures outside the smoke are concealed to those within it.

Pathfinder Lost Omens Cheliax, Infernal InheritanceORC