▁of ▁windows ▁or ▁sun ro of s ▁to ▁vent ▁smoke , ▁is ▁prohib ited ▁by ▁section ▁ 2 3 1 . 1 ▁of ▁the ▁Motor ▁Ve h icle ▁Act . ▁The ▁sm oking ▁ban ▁does ▁not ▁apply ▁to ▁hotel ▁rooms , ▁though ▁many ▁have ▁private ▁b ans ▁on ▁the ▁practice . ▁▁ ▁As ▁of ▁ 2 0 1 5 , ▁ 1 0 . 2 % ▁of ▁British ▁Columbia ▁residents ▁smoke , ▁the ▁lowest ▁of ▁any ▁province . ▁ ▁Man it oba ▁Man it oba ▁b anned ▁sm oking ▁in ▁all ▁work p laces ▁and ▁en closed ▁public ▁spaces ▁on ▁October ▁ 1 , ▁ 2 0 0 4 . ▁Spe cially ▁vent il ated ▁rooms ▁are ▁not ▁allowed ▁in ▁bars ▁and ▁restaur ants . ▁A ▁law ▁b anning ▁ret ail ▁displays ▁of ▁to b acco ▁and ▁heavily ▁restrict ing ▁promotion ▁and ▁advert ising ▁of ▁to b acco ▁and ▁to b acco - related ▁products ▁came ▁into ▁effect ▁on ▁ 1 5 ▁October ▁ 2 0 0 5 . ▁An ▁act ▁b anning ▁sm oking ▁in ▁vehicles ▁when ▁children ▁under ▁ 1 6 ▁are ▁present ▁became ▁law ▁July ▁ 1 5 , ▁ 2 0 1 0 ▁and ▁applies ▁to ▁all ▁light ed ▁to b acco ▁products . ▁ ▁As ▁of ▁ 2 0 1 5 , ▁ 1 4 . 8 % ▁of ▁Man it oba ▁residents ▁smoke . ▁ ▁New ▁Brun sw ick ▁New ▁Brun sw ick ▁b anned ▁sm oking ▁in ▁public ▁spaces ▁and ▁work p laces ▁in ▁October ▁