Design Features in Multiple Generations of Electronic Cigarette atomizers.

Introduction:
This article provides an in-depth analysis of the design features in multiple generations of electronic cigarette (EC) atomizers. The study dissects and photographs atomizers from 34 brands representing three generations of ECs sold between 2011-2017. The research identifies five distinct atomizer design categories in first generation products and three categories in the third generation. The study also highlights the changes in design over time, including the removal of certain components and the increase in atomizer size.

Key Points:

* The study identifies five distinct atomizer design categories in first generation ECs and three categories in the third generation.
* Over time, there has been a trend towards removing certain components, such as solder joints between wires and Polyfil fibers.
* The size of atomizers has increased over time, with larger reservoirs and batteries in second and third generation ECs.
* Second and third generation ECs generally lack a thick wire, fibers, and sheath, compared to first generation models.
* The design of the atomizer is particularly important as it aects the performance of ECs and what transfers into the aerosol.
* The article provides photographs and detailed descriptions of the dissected atomizers, allowing for a comprehensive understanding of the design features.
* The study contributes to an understanding of atomizer design and highlights the continually evolving nature of ECs.

Main Message:
The design of EC atomizers has evolved over time, with changes in size, component removal, and the addition of new features. Understanding the design features of atomizers is crucial for interpreting data on aerosol composition and performance. The study highlights the importance of continual analysis of EC design, as the devices are rapidly changing. additionally, the design of the atomizer plays a significant role in what transfers into the aerosol, making it a key area of focus for regulatory matters. Overall, the article provides valuable insights into the evolution of EC atomizer design and the importance of ongoing analysis in this field.

Williams M, Talbot P. Design Features in Multiple Generations of Electronic Cigarette atomizers. International journal of environmental research and public health. 2019;16(16). doi:10.3390/ijerph16162904