The ???? ????? in ???? (The commentary under the ??”?, found at the back of the ????) clearly states that it is ASSUR TO SMOKE ON YOM TOV.
(See also http://www.theyeshivaworld.com/coffeeroom/topic/smoking-why-should-it-be-muttar#post-386078, I have heard this many times but never seen it. It sounds like the ??? ????? has a ????? about this in ??? ?”?.)