ONS data reveals a 1.1 million never-smoker vaping cohort in Great Britain, with uptake nearly doubling since 2021, raising urgent questions about long-term lung health as smoking rates hit record lows.
A Statistical Anomaly
Until recently, the e-cigarette market was defined by a single, clear purpose: helping adults kick the habit of burning tobacco. The narrative was straightforward and broadly accepted by health bodies, positioning vapes as a harm reduction tool for the desperate and the determined. However, new figures from the Office for National Statistics have shattered that simple binary, revealing a demographic that defies the traditional user profile. In 2025, one million and one hundred thousand people in Great Britain reported using e-cigarettes despite never having been regular smokers. This is not a marginal statistic, nor is it a rounding error in the data. It represents a significant and rapid shift in how a generation is engaging with nicotine and aerosolized chemicals, a trend that health experts are now describing with a mixture of concern and urgency. The scale of this cohort is undeniable, and it challenges the assumption that vaping is solely a transitional phase for those fleeing the smoke-filled past.
Looking at the trajectory, the growth is almost startling in its speed. In 2021, only 1.5 percent of people who had never smoked reported using e-cigarettes. By 2025, that figure had nearly doubled to 2.9 percent. This is the first time official ONS data has confirmed that the number of never-smokers vaping has topped the one million mark across England, Scotland and Wales. The jump from 940,000 in 2024 to 1.1 million in 2025 suggests that the uptake is not slowing down, but accelerating. It is a demographic explosion that has occurred within the span of a single generation, and it fundamentally alters the risk landscape for public health officials who are tasked with protecting the lungs of the next cohort of adults. The data is clear, the trend is upward, and the implications are far from settled.
The 25 to 34 Cohort
Who exactly are these people? The ONS data points to a very specific age bracket that is driving this surge. Between the ages of 25 and 34, e-cigarette use has climbed from 12.9 percent in 2024 to 16.4 percent in 2025. This single age group is now the most common users of e-cigarettes in the UK, a position it has only just overtaken from the 16 to 24 demographic. For four years, the youngest adults held the lead, but the momentum has clearly shifted. The 25 to 34 group is now the core of the vaping community, a fact that has significant implications for employment, productivity and long-term health outcomes. These are not teenagers experimenting in a bedroom; these are working adults, parents and individuals at the peak of their physical capability, choosing to introduce a new chemical exposure into their daily routine. The shift in the center of gravity for vaping users is a critical detail that should not be overlooked in the broader discussion about public health.
The contrast with the younger age group is particularly telling. While the 16 to 24 cohort remains significant, it is no longer the dominant force in the statistics. This suggests that the appeal of vaping is not just a passing phase of adolescence, but a sustained habit that extends well into early adulthood. The 25 to 34 demographic is making a conscious, repeated choice to use these devices, often without any prior history of tobacco addiction. This is a crucial distinction, as it means that the risk factors are not being compared against a baseline of heavy smoking. Instead, these individuals are introducing a new variable into a previously clear health equation. The data does not just show a rise in usage; it shows a rise in a specific, stable demographic that is likely to continue using these devices for decades, making the long-term effects of their choice a matter of profound medical interest.

Smoking's Slow Death
To understand the significance of the vaping rise, one must look at the context of the smoking decline. The ONS figures for 2025 show that approximately 4.9 million people aged 18 and over smoked cigarettes, representing 9.8 percent of the population. This is a decrease from 10.6 percent in 2024 and continues a long-term downward trend that has been observed for decades. David Mais, speaking for the ONS, noted that fewer than one in 10 adults now smoke, marking the lowest proportion on record. This is a historic achievement in public health, a testament to decades of anti-smoking campaigns, taxation and cultural shifts. The reduction in smoking is a clear victory, and it should be celebrated as such. However, the fact that e-cigarette use remains more common than smoking, and has followed an overall upward trend since 2020, suggests that the transition from tobacco to vapor is not as clean or as simple as the policy makers might have hoped.
The juxtaposition of these two trends creates a complex picture. On one hand, we are seeing a steady, reassuring decline in the number of people burning tobacco, a behavior with a well-documented and devastating impact on health. On the other hand, we are witnessing a steady, concerning rise in the number of people inhaling aerosolized liquids, a behavior with a much less documented and potentially unpredictable impact. The fact that e-cigarette users are also getting older, as indicated by the shift in the dominant age group, suggests that this is not a fleeting fad but a sustained change in behavior. The public health community is now facing a dilemma: how to maintain the progress made in reducing smoking while addressing the new, and potentially significant, risks associated with vaping among those who were previously smoke-free. The balance is delicate, and the data suggests that it is tilting.

The Unknown Long-Term Cost
The most pressing question surrounding the 1.1 million never-smokers who vape is not whether they are using the devices today, but what the consequences will be in twenty or thirty years. Justin Webb, an associate professor of physical activity and health at London Metropolitan University, has described the situation as "somewhat concerning," highlighting the need to preserve the value of vapes as a quitting aid while strengthening protection against uptake among non-smokers. The core of the issue is uncertainty. We know that vapes contain fewer harmful chemicals than cigarette smoke, but "fewer" does not mean "none." The long-term effects of inhaling a steady stream of flavored aerosols, propylene glycol, vegetable glycerin and various additives are not yet fully understood. We are, in a sense, conducting a large-scale, uncontrolled experiment on a million people, and the results will not be known for a generation.
This uncertainty is what makes the current trend so difficult to manage. For those who vaped to quit smoking, the risk-benefit analysis is relatively clear: they are moving from a high-risk behavior to a lower-risk one. For the never-smokers, the analysis is far more complex. They are moving from a zero-risk baseline to a potentially elevated-risk one. The full long-term effects of this exposure remain unclear, a phrase that carries a lot of weight in medical literature. It is a reminder that public health is not just about reacting to known harms, but about anticipating and preventing future ones. The rise in vaping among never-smokers is a challenge that requires a nuanced response, one that acknowledges the utility of the technology for some while firmly addressing the risks for others. The data is in, and the conversation can no longer be avoided.

Policy in the Crosshairs
The implications of these figures for policy are significant and immediate. If a million never-smokers are now vaping, the current regulatory framework, which was largely designed with smokers in mind, may be ill-equipped to address the needs and risks of this new cohort. The fact that the 25 to 34 age group is driving the uptake suggests that the marketing and social normalization of vaping have been highly effective, perhaps more effective than intended. Health officials are now forced to confront the reality that their harm reduction strategies have created a new, unexpected problem. The challenge is to find a way to support those who need vapes to quit smoking without inadvertently encouraging a new generation of never-smokers to take up the habit. This is a tightrope walk, and the data suggests that the balance is becoming increasingly precarious.
The need for targeted interventions is clear. We need to strengthen protection against uptake among children and non-smokers, as Webb suggests, but we also need to ensure that those who are using vapes as a cessation tool are not penalized or discouraged. This requires a sophisticated approach, one that goes beyond simple bans or taxes. It requires education, clear communication and a deep understanding of the motivations behind the behavior. The rise in vaping among never-smokers is a test of our ability to adapt public health strategies to a rapidly changing landscape. The data is clear, the trends are upward, and the next few years will be critical in determining the long-term health outcomes of this growing cohort. The clock is ticking, and the stakes are high.
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