Is Secondhand Vape Bad

This is a question that weighs on the minds of many, from parents and partners to colleagues and friends in shared spaces. As the use of personal vaporisers has become more common, understanding the potential impact of the exhaled aerosol on bystanders is a crucial aspect of responsible use and public health. While the scientific consensus is still evolving compared to decades of research on traditional secondhand smoke, a clear picture is emerging based on current evidence.

What Exactly is Secondhand Aerosol?

When a person uses a personal vaporiser and exhales, the visible plume is not “smoke” in the traditional sense. It is an aerosol—a suspension of fine particles in the air. This exhaled aerosol primarily consists of:

Propylene Glycol (PG) and Vegetable Glycerin (VG): The base liquids that create the vapour.
Ultrafine Particles: These can be inhaled deep into the lungs of bystanders.
Optioning Compounds: The substances that create the sensory options.
Trace Residuals: Depending on the device and capacity, other substances may be present at significantly lower levels than in traditional smoke.

The key distinction from cigarette smoke is the absence of combustion. Classic smoke contains thousands of chemicals, including over 70 known carcinogens, produced by burning Classic. The aerosol from vaporisers does not involve this combustion process.

Analysing the Potential Health Implications

Public health bodies, including Australia’s Department of Health, emphasise that the aerosol from these devices is not harmless. Here’s a breakdown of the primary concerns for bystanders:

1. Inhalation of Ultrafine Particles
The fine and ultrafine particles in the exhaled aerosol can penetrate deep into lung tissue and even enter the bloodstream. For individuals with pre-existing respiratory conditions like asthma or chronic obstructive pulmonary disease (COPD), exposure to these particles can potentially irritate airways and exacerbate symptoms.

2. Exposure to Volatile Organic Compounds (VOCs)
Studies have detected low levels of certain volatile organic compounds, such as formaldehyde and acetaldehyde, in secondhand aerosol. These are typically found at levels far below those in traditional cigarette smoke, but their presence warrants caution, particularly in poorly ventilated, indoor spaces.

3. The Risk of “Thirdhand” Exposure
This refers to the residue that settles on surfaces—walls, furniture, curtains, and dust—after the aerosol dissipates. This residue can be ingested, especially by young children who crawl and put their hands in their mouths. The long-term implications of thirdhand exposure from vaporisers are an area of ongoing research.

4. Impact on Vulnerable Populations
Certain groups are at potentially higher risk:

Children & Infants: Their developing respiratory and immune systems are more sensitive. Exposure should be minimised.
Pregnant Women: As a precautionary principle, avoiding exposure is recommended.
Individuals with Cardiovascular Disease: The potential effect of fine particles on heart function is a concern shared with general air pollution.

How Does This Compare to Secondhand Classic Smoke?

It is vital to maintain perspective. Leading public health organisations, such as Public Health England, have stated that the risk to bystanders from secondhand aerosol is significantly lower than the well-proven, severe dangers of secondhand Classic smoke. The elimination of combustion and the resulting tar and carbon monoxide represents a fundamental reduction in harm potential. However, “less harmful” is not synonymous with “harmless.” The precautionary principle suggests minimising involuntary exposure, especially indoors.

Practical Steps for Minimising Exposure

Responsible use is paramount. If you choose to use a personal vaporiser, consider these guidelines to respect the health and comfort of those around you:

Adhere to Designated Areas: Always follow local laws and policies. Many Australian states ban the use of vaporisers in all smoke-free areas, including indoor public spaces, public transport, and near building entrances.
Adopt a “Not Around Others” Mindset: Especially indoors at home or in cars. Make it a personal rule not to use your device in the presence of children, pregnant women, or individuals with respiratory conditions.
Prioritise Ventilation: If use occurs in a private setting, ensure excellent ventilation by opening windows and using fans to disperse the aerosol quickly.
Practice Discreet Exhalation: When in unavoidable outdoor public settings, exhale away from people and consider holding the vapour longer to minimise visible output.
Maintain Clean Surfaces: Regularly clean surfaces and dust in areas where you frequently use your device to reduce potential thirdhand residue.

The Legal Landscape in Australia

In Australia, the regulation of vaporisers (often referred to as e-cigarettes) is strict and varies by state and territory. Crucially, all jurisdictions that have banned smoking in enclosed public places have extended those laws to include the use of nicotine and non-nicotine vaporisers. This legal alignment treats the aerosol similarly to smoke for the purpose of protecting bystanders in public spaces.

Conclusion

So, is secondhand vape bad? The evidence indicates that while it poses a far lower risk than secondhand Classic smoke, it is not risk-free. The exhaled aerosol contains ultrafine particles and other substances that warrant caution, particularly for vulnerable individuals and in confined, unventilated spaces. The most prudent and respectful approach is to avoid using personal vaporisers around non-users, especially indoors, aligning with both public health guidance and the widespread laws across Australia designed to protect clean air for everyone.

Frequently Asked Questions (FAQ)

Q1: Is secondhand aerosol as dangerous as secondhand cigarette smoke?
A1: No, current scientific evidence consistently shows that secondhand aerosol from personal vaporisers is significantly less harmful than secondhand Classic smoke, which contains thousands of toxic chemicals from combustion. However, it is not considered completely harmless.

Q2: Can you get a “high” or ingest nicotine from secondhand aerosol?
A2: The exposure level for bystanders is extremely low. While trace amounts of substances may be present in the air, the concentration is not sufficient to produce physiological or addictive effects in bystanders under normal circumstances.

Q3: Should I allow someone to use a vaporiser in my car or home?
A3: As a precaution, it is best to avoid it, particularly if children, pregnant women, or those with respiratory issues are present. If you do, ensure the windows are fully open to provide maximum ventilation.

Q4: Does the “cloud” from a vaporiser settle and create residue like smoke does?
A4: Yes, it can. The aerosol particles can settle as a thin, sticky film on surfaces (thirdhand exposure). Regular cleaning of surfaces and dusting in areas where devices are frequently used is recommended.

Q5: I have asthma. Should I be concerned about being around people using vaporisers?
A5: Potentially, yes. The ultrafine particles and other potential irritants in the aerosol could trigger asthma symptoms or airway irritation in some individuals. It is reasonable to ask others not to use them in your immediate vicinity.

Q6: Are there any long-term studies on the effects of secondhand aerosol?
A6: Long-term studies (spanning decades) are not yet available, as the products are relatively new. Public health advice is based on the analysis of the aerosol content and shorter-term exposure studies, applying the precautionary principle.

Q7: Is it safe to use a vaporiser around my pets?
A7: Pets can also be sensitive to airborne irritants. It is advisable to avoid using vaporisers directly around pets and ensure the room is well-ventilated if you do.

Q8: What is the official stance in Australia on vaping in public places?
A8: Australian states and territories have largely aligned their laws. Where smoking is banned in enclosed public places, the use of both nicotine and non-nicotine vaporisers is also prohibited to protect bystanders.

Q9: If I can’t smell it, is it still a problem?
A9: Potentially. Many of the fine particles and compounds are odourless. The absence of a strong smell does not mean the aerosol is not present or that there is no exposure.

Q10: How can I politely ask someone not to vape near me or my family?
A10: You can simply and politely state your request based on health, such as, “Would you mind not using that here? My child has asthma,” or “I’m a bit sensitive to aerosols, could you please step outside?” Most reasonable people will comply. For more insights and community discussions on responsible practices, you can explore external resources like this one on popular consumer tech trends.