The verb 피우다 is said to need a direct object complement. Therefore, it wouldn't be correct to say :
"교실에서 피울 수 없습니다."
in oder to express a smoke interdiction in a classroom.
Moreover the grammatically correct sentence :
"교실에서 담배를 피울 수 없습니다."
would express only the interdiction of the smoking of "담배" which means cigarette(s). So this sentence wouldn't forbide the smoking of calumets (peace pipes), narghiles, pipes, cigars, and so on.
Is there a korean verb meaning to smoke but not needing a direct object complement ?
Is there a sentence using 피우다 that would forbid the smoking of every source of smoke ?
How can be expressed a smoke interdiction in a classroom for all kinds of source of smoke ?