Second-hand smoke

Second-hand smoke, known as passive smoke, happens when someone nearby breathes in smoke or aerosol. Second-hand smoke can come from any vaping or tobacco product, including cigarettes, e-cigarettes, shisha (waterpipes), cigars or pipes.

Second-hand smoke is produced when:

  • a smoker exhales after smoking or vaping
  • when the burning end of a tobacco product releases smoke.

Children exposed to second-hand smoke

Second-hand smoke is a health threat and can cause harm to children. Children are at a greater risk because:

  • their bodies and lungs are still developing
  • they breathe at a faster rate than adults
  • their lungs are smaller and less mature.

Parents or carers who smoke are the most common source of second-hand smoke exposure for children. Children with parents who smoke are more likely to smoke themselves later in life.

Children exposed to second-hand smoke are at greater risk of:

Respiratory conditions

  • asthma - second-hand smoke exposure during childhood is a key risk factor for asthma development 
  • poor lung development 
  • croup 
  • bronchitis 
  • pneumonia

Additional health problems

Exposure during pregnancy and early life

Exposure to smoke or second-hand smoke increases the risk of: 

  • stillbirth 
  • premature babies 
  • health complications for the mother and child 
  • poor growth and development
  • poor lung development.

Did you know?

The risk of Sudden Infant Death Syndrome (SIDS) is 2 times higher in newborn babies exposed to second-hand smoke compared to babies not exposed. 

Reducing children’s second-hand smoke exposure

The best way to protect children from the dangers of second-hand smoke is to keep children’s environments as smoke and vape-free as possible. Here are some points to consider:

  1. Establish house rules- Smoke or vape outside the house and away from windows.
  2. Avoid smoking or vaping in the car- Blowing smoke out the window does not protect children from the dangers of second-hand smoke.
  3. Quit smoking or vaping yourself- Quitting will not only reduce your child’s exposure, it will also improve your own health outcomes.
  4. Talk to your child- Teach children about the harmful effects of smoking and second-hand smoke.