Many vapers choose to vape indoors, believing it is less harmful than smoking. However, concerns remain about whether second-hand vapour affects the health of others in the household. This article examines the impact of vaping indoors, its potential risks, and how to vape responsibly.

What Is Second-Hand Vapour?

Second-hand vapour refers to the aerosol exhaled by a vaper. Unlike cigarette smoke, it does not contain tar or many of the harmful chemicals produced by combustion. However, second-hand vapour still includes:

• Nicotine (in nicotine-containing e-liquids)

• Propylene glycol (PG) and vegetable glycerin (VG)

• Flavouring agents

• Small amounts of toxic compounds like formaldehyde and acetaldehyde

Health Risks of Second-Hand Vapour

Research suggests that second-hand vapour poses significantly fewer risks than second-hand smoke. However, potential concerns include:

• Respiratory Irritation: Sensitive individuals, such as children, pregnant women, or those with asthma, may experience irritation from chemicals in the vapour.

• Nicotine Exposure: Nicotine in second-hand vapour can be absorbed by bystanders, though at much lower levels than from second-hand smoke.

• Surface Residue: Vapour particles can settle on surfaces, leading to the formation of a residue known as "third-hand vapour." This may be a concern for households with children or pets.

How to Vape Responsibly Indoors

• Ensure Proper Ventilation: Open windows or use air purifiers to disperse vapour and improve indoor air quality.

• Avoid Vaping Around Children and Pets: Protect vulnerable individuals from potential exposure to chemicals in the vapour.

• Choose Nicotine-Free E-Liquids: Reduce the risk of nicotine exposure for others in the household.

• Clean Surfaces Regularly: Wipe down surfaces to minimise the build-up of residue.

Comparing Vaping Indoors to Smoking Indoors

Vaping produces far fewer harmful by-products than smoking and does not involve combustion. However, this does not mean it is entirely risk-free, especially for sensitive individuals. While the risks of second-hand vapour are minimal compared to second-hand smoke, caution is still advised.

Conclusion

Vaping indoors may have a minor impact on others in the household, particularly those who are sensitive to vapour or nicotine. By taking precautions, such as improving ventilation and avoiding vaping around vulnerable individuals, you can minimise any potential risks and enjoy vaping responsibly.