Vaping will be outlawed in Victoria's smoke-free spaces and e-cigarette advertising banned in shops, under laws to be introduced by the Andrews government within days.

Children won't be able to buy e-cigarettes or vapes - even those without nicotine - while Victoria's outdoor dining areas will become smoke and vape free from mid- 2017.

E-cigarette vapour comprises micro- and nano-particles. There's little to no understanding of what the health consequences will be of deep inhaling these thousands of times a year across many years. Credit:Eddie Jim

Smokers will also be banned from lighting up within 4m of food served outdoors at pubs and within 10m of food stalls at major events, with $150 fines for anyone who smokes in outdoor dining areas.

The bans will include all outdoor spaces where food is served, including restaurants, cafes, takeaway shops, pubs, festivals and sporting events.