▁Massachusetts , ▁have ▁ 2 1 ▁years ▁of ▁age ▁as ▁the ▁minimum ▁age ▁to ▁purchase ▁c igare tt es ; ▁in ▁most ▁other ▁areas ▁the ▁legal ▁age ▁is ▁ 1 8 ▁or ▁ 1 9 . ▁ ▁Using ▁sales ▁and ▁to b acco ▁tax ▁data ▁from ▁ 2 1 6 ▁cities ▁and ▁count ies ▁over ▁ 1 1 ▁years , ▁the ▁research ers ▁project ed ▁that ▁seven ▁of ▁the ▁states ▁would ▁have ▁no ▁economic ▁impact , ▁and ▁West ▁Virginia ▁would ▁see ▁a ▁ 1 ▁percent ▁boost ▁in ▁restaurant ▁jobs ▁if ▁a ▁state wide ▁sm oking ▁ban ▁was ▁adopted . ▁Other ▁benefits ▁of ▁sm oking ▁b ans ▁in ▁bars ▁and ▁restaur ants ▁include ▁improved ▁lung ▁function ▁and ▁a ▁decrease ▁in ▁sm oking ▁rates ▁among ▁staff . ▁Some ▁data ▁came ▁from ▁the ▁Missouri ▁Department ▁of ▁Re venue ▁after ▁sm oking ▁b ans ▁were ▁passed ▁in ▁Lake ▁Saint ▁Louis , ▁Kirk wood , ▁Clay ton ▁and ▁Ball win . ▁ ▁Effect s ▁upon ▁musical ▁instruments ▁Bell ows - dri ven ▁instruments ▁– ▁such ▁as ▁the ▁accord ion , ▁concert ina , ▁mel ode on ▁and ▁( I r ish ) ▁U ille ann ▁bag pip es ▁– ▁reported ly ▁need ▁less ▁frequent ▁clean ing ▁and ▁maintenance ▁as ▁a ▁result ▁of ▁the ▁Irish ▁smoke - free ▁law . ▁" Th ird - hand ▁smoke ", ▁solid ▁particul ates ▁from ▁second hand ▁smoke ▁that ▁are ▁ad s or bed ▁onto ▁surfaces ▁and ▁later ▁re - em itted ▁as ▁g ases ▁or ▁transferred ▁through ▁touch , ▁are ▁a ▁particular