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<\/p>\nNon-heated vapes offer a safe and effective alternative device design.<\/p>\n
A typical e-cigarette heats e-liquid to create an aerosol for the user to inhale.<\/p>\n
However, non-heated vape technologies are fast emerging as the possible next generation of products, with the potential to reduce harmful emissions, while delivering a more consistent and repeatable performance.<\/p>\n
Here Pete Lomas, Managing Consultant at Broughton, a scientific organization that conducts vape compliance testing, explains the trend towards non-heated vape technology.<\/p>\n
In traditional vaping technologies, the e-liquid is heated past its boiling point, turning it into a vapour.<\/p>\n
This \u2018conventional\u2019 vaporisation is typically carried out by a heating element, such as a coil, powered by a battery.<\/p>\n
Such products are safer alternatives to combustible cigarettes, but could they be improved and, if so, how?<\/p>\n
<\/p>\n
Today, design teams working on the next generation of e-cigarettes are turning to atomization over vaporisation as a mechanism for delivering nicotine to the lungs.<\/p>\n
Atomization is the process by which a bulk liquid is transformed using mechanical action into a fine mist or spray of liquid droplets suspended in a surrounding gas (in this case, the air).<\/p>\n
There are several advantages to creating a product that operates on the principle of atomization.<\/p>\n
For a start, not applying heat to the e-liquid can reduce the risk of emissions of harmful and potentially harmful constituents (HPHCs).<\/p>\n
The vapour temperature is lower, so the risk of harm or irritation to the user is also reduced upon inhalation.<\/p>\n
In addition, the potential to control vapour particle sizes with new atomization technologies could result in the more efficient delivery of nicotine to the lungs.<\/p>\n
Much of the technology being used to atomize e-liquid isn\u2019t new, just repurposed.<\/p>\n
Piezo-ceramic meshes, for example, work by generating ultrasonic waves to vibrate the piezo element, drawing the e-liquid through the mesh and atomizing it.<\/p>\n
Piezo atomizers are already common in medical devices such as nebulizers, used to deliver asthma medication to the lungs as an aerosol.<\/p>\n
These are favoured since droplet size is uniformly predefined by the mesh dimensions and can be achieved with minimal energy input.<\/p>\n
The consistent performance that can be achieved using non-heated technologies like the piezo-ceramic mesh could make them ideal candidates for approval as medicinal products in the UK.<\/p>\n
Approval via the Marketing Authorization Application (MAA) pathway is now being encouraged by the Medicines and Healthcare products Regulatory Agency (MHRA).<\/p>\n
Once approved, these products can be prescribed by GPs or other healthcare professionals as smoking cessation tools.<\/p>\n
<\/p>\n
The challenge design teams currently face is to make non-heated technologies commercially viable and small enough to fit within a vaping product.<\/p>\n
Due to the increased cost of manufacturing a non-heated system, it is expected that vapes based on non-heated technology will be available both via the MAA route and as high-end consumer products.<\/p>\n
However, a quick search through recently published patent applications shows the many different approaches engineers are taking to produce commercially viable vaporisation products, and this may be subject to change.<\/p>\n
Another challenge when developing non-heated vape technology has been to match the e-liquid properties with the requirements for the new technologies.<\/p>\n
Typically, non-heated vapes require lower viscosity e-liquids than currently available for the atomization to work effectively.<\/p>\n
However, in conventional vaping products lower viscosity liquids have historically had greater leakage issues \u2014 this will need to be addressed before widespread adoption is possible.<\/p>\n
As the vaping industry continues to evolve, it seems likely that we\u2019ll see more and more non-heated vapes hitting the shelves, both as consumer products and licensed medicinal products aimed at helping smokers quit.<\/p>\n
The challenges in development are there, but they\u2019re certainly not insurmountable, particularly if companies work with the right partner.<\/p>","protected":false},"excerpt":{"rendered":"
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