A. If one were to intentionally and deliberately inhale any substance that is perceptible (visible) like smoke emitted from incense sticks, perfumes, cigarettes etc. or the vapour of perfumes in a way that the flame or smoke is deliberately brought close to the face and the smoke is thereby ingested and goes down the throat, then one’s fast would become invalid and Qaza is necessary.\

And Allah Knows Best

Darul Ihsan Fatwa Department