Does smoking invalidate wudhu?
بسم الله الرحمن الرحيم
(Fatwa: 406/321/D=5/1438)
It does not invalidate the wudhu but you need to clean your mouth before starting the prayer or reciting the holy Quran so that the bad smell is removed.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband