Answer:
(Fatwa: 301/303=LM)
If one is sure of passing air his wuzu will be nullified. If one passed air during salah he can continue from the same point after renewing his wuzu, but it is better to re-perform the salah afresh.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
