Second hand smoke is a lethal cocktail of more than 4,000 irritants, toxins and cancer-causing substances.
Most second hand smoke is invisible and odourless, so no matter how careful you think you're being, people around you still breathe in the harmful poisons.
Passive smoking is especially harmful for children as they have less well-developed airways, lungs and immune systems.
If you would like some help to quit smoking, then click on the link below:
https://www.nhs.uk/live-well/quit-smoking/nhs-stop-smoking-services-help-you-quit/