[3] According to estimates of the German Cancer Research Center, around one million minors in Germany were exposed to smoking in cars as of 2022.
A study showed that after smoking one cigarette in a car, the time required for respirable particles' concentration to return to its initial value, depending on car movement cases, windows positions and ventilation settings, varies between 10 and 60 minutes.
[8] In the Australian Capital Territory, a smoking ban in cars with minors under the age of 16 has existed since May 2012.
In New South Wales a smoking ban in cars with minors under the age of 16 has existed since July 2009.
[11] In the Northern Territory a smoking ban in cars with minors under the age of 16 has existed since December 2014, the last jurisdiction in Australia to do so.
[17] In Western Australia a smoking ban in cars with minors under the age of 17 has existed since 22 September 2010.
[19] Smoking with anyone under the age of 16 present in a vehicle is currently banned in the provinces of Alberta, British Columbia, Newfoundland and Labrador, Manitoba, Ontario, New Brunswick, Prince Edward Island, Saskatchewan and Yukon Territory.
Greece introduced fines of up to 3,000 Euros for smoking in a vehicle with a minor (a child under 12 years old) in 2019.
[29] In Turkey, smoking in a vehicle has been prohibited since 2013 with the law numbered 4207[30] in accordance with the smoke-free air policy.
[31] On 6 January 2010, a federal law (superseding the smoking bans which already existed in most of the emirates) was signed.
Among other provisions, it introduces a smoking ban in private vehicles in the presence of children under the age of 12.
The law came into force on 1 September 2015,[39] after debate in the States Assembly and is the first place in the British Isles to enact a ban of this sort.
A smoking ban in cars with children is being tested in the states of Arkansas (child's age <14), Louisiana (<13), Maine (<16), Oregon (<18), Puerto Rico (<13), Utah (<15), Vermont (<8), and Virginia (<8).
[45] Taiwan plans to ban smoking while driving a car, riding a bike or walking on a sidewalk.