Pupils from Motherwell held up five clocks to highlight how invisible but harmful chemicals from second-hand smoke can linger for up to five hours.
The Muir Street Primary School pupils are supporting for the Take It Right Outside campaign which wants to encourage parents to protect the next generation from the effects of second-hand smoke.
Because 85 per cent of all second-hand smoke is invisible and odourless, many do not realise that the harmful chemicals are still waiting for children when they come in from playing or school.
With 11 per cent of children in Scotland still exposed to second hand smoke in the home, the campaign is highlighting practical steps people can take to make their car and home smoke-free.
Anna McKinney, Headteacher at Muir Street Primary School, said:“I’m delighted for the school to get behind this campaign. I think a lot of people will be surprised by how long second-hand smoke can linger, so it’s great to be helping raise awareness.”
Minister for Public Health Maureen Watt said: “The only way to ensure that a home is smoke-free is to never smoke indoors.”
For help and advice, visit Right Outside