Where does “nefajčiar” come from?

nefajčiar (Slovak) comes from Slovak fajčiar, from Slovak fajčiť, from Slovak fajka, from German Pfeife, from Middle High German pfīfe, from Old High German pfīfa, from Proto-West Germanic *pīpā, from Vulgar Latin pipa — I pip, peep.

nefajčiar (Slovak): non-smoker