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Design Features in Multiple Generations of Electronic Cigarette Atomizers

Author

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  • Monique Williams

    (Department of Molecular, Cell, and Systems Biology, University of California, Riverside, CA 92521, USA)

  • Prue Talbot

    (Department of Molecular, Cell, and Systems Biology, University of California, Riverside, CA 92521, USA)

Abstract

The design of electronic cigarette (EC) atomizing units has evolved since their introduction over 10 years ago. The purpose of this study was to evaluate atomizer design in ECs sold between 2011–2017. Atomizers from 34 brands representing three generations of ECs were dissected and photographed using a stereoscopic microscope. Five distinct atomizer design categories were identified in first generation products (cig-a-like/cartomizer) and three categories were found in the third generation. Atomizers in most cig-a-like ECs contained a filament, thick wire, wire joints, air-tube, wick, sheath, and fibers, while some later models lacked some of these components. Over time design changes included an increase in atomizer size; removal of solder joints between wires; removal of Polyfil fibers; and removal of the microprocessor from Vuse. In second and third generation ECs, the reservoirs and batteries were larger, and the atomizing units generally lacked a thick wire, fibers, and sheath. These data contribute to an understanding of atomizer design and show that there is no single design for ECs, which are continually evolving. The design of the atomizer is particularly important as it affects the performance of ECs and what transfers into the aerosol.

Suggested Citation

  • Monique Williams & Prue Talbot, 2019. "Design Features in Multiple Generations of Electronic Cigarette Atomizers," IJERPH, MDPI, vol. 16(16), pages 1-15, August.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:16:p:2904-:d:257375
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    References listed on IDEAS

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    3. Carmela Protano & Pasquale Avino & Maurizio Manigrasso & Valerio Vivaldi & Franco Perna & Federica Valeriani & Matteo Vitali, 2018. "Environmental Electronic Vape Exposure from Four Different Generations of Electronic Cigarettes: Airborne Particulate Matter Levels," IJERPH, MDPI, vol. 15(10), pages 1-10, October.
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    Cited by:

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    2. Monique Williams & Wentai Luo & Kevin McWhirter & Omeka Ikegbu & Prue Talbot, 2022. "Chemical Elements, Flavor Chemicals, and Nicotine in Unused and Used Electronic Cigarettes Aged 5–10 Years and Effects of pH," IJERPH, MDPI, vol. 19(24), pages 1-16, December.
    3. Nicholas J. Felicione & K. Michael Cummings & Shannon Gravely & David Hammond & Ann McNeill & Ron Borland & Geoffrey T. Fong & Richard J. O’Connor, 2021. "“Don’t Know” Responses for Nicotine Vaping Product Features among Adult Vapers: Findings from the 2018 and 2020 ITC Four Country Smoking and Vaping Surveys," IJERPH, MDPI, vol. 18(15), pages 1-15, July.
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    5. Evan Floyd & Toluwanimi Oni & Changjie Cai & Bilal Rehman & Jooyeon Hwang & Tyler Watson, 2022. "Validation of a High Flow Rate Puff Topography System Designed for Measurement of Sub-Ohm, Third Generation Electronic Nicotine Delivery Systems," IJERPH, MDPI, vol. 19(13), pages 1-12, June.

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