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Public Health Consequences of E-Cigarettes (2018)

Chapter: Appendix C Glossary of Terms Related to E-Cigarettes

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Suggested Citation:"Appendix C Glossary of Terms Related to E-Cigarettes." National Academies of Sciences, Engineering, and Medicine. 2018. Public Health Consequences of E-Cigarettes. Washington, DC: The National Academies Press. doi: 10.17226/24952.
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Page 697
Suggested Citation:"Appendix C Glossary of Terms Related to E-Cigarettes." National Academies of Sciences, Engineering, and Medicine. 2018. Public Health Consequences of E-Cigarettes. Washington, DC: The National Academies Press. doi: 10.17226/24952.
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Page 698
Suggested Citation:"Appendix C Glossary of Terms Related to E-Cigarettes." National Academies of Sciences, Engineering, and Medicine. 2018. Public Health Consequences of E-Cigarettes. Washington, DC: The National Academies Press. doi: 10.17226/24952.
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Page 699
Suggested Citation:"Appendix C Glossary of Terms Related to E-Cigarettes." National Academies of Sciences, Engineering, and Medicine. 2018. Public Health Consequences of E-Cigarettes. Washington, DC: The National Academies Press. doi: 10.17226/24952.
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Page 700
Suggested Citation:"Appendix C Glossary of Terms Related to E-Cigarettes." National Academies of Sciences, Engineering, and Medicine. 2018. Public Health Consequences of E-Cigarettes. Washington, DC: The National Academies Press. doi: 10.17226/24952.
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Page 701
Suggested Citation:"Appendix C Glossary of Terms Related to E-Cigarettes." National Academies of Sciences, Engineering, and Medicine. 2018. Public Health Consequences of E-Cigarettes. Washington, DC: The National Academies Press. doi: 10.17226/24952.
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Page 702

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C Glossary of Terms Related to E-Cigarettes Term Definition advanced personal Generally used to refer to second- or third-­ vaporizer (APV) generation e-cigarette devices with regulated vari- able voltage or variable wattage, APV can also be called a mod. analog (slang) Combustible tobacco cigarette. atomizer The atomizer is the component in an electronic cigarette that is responsible for heating the e-liquid to the point of aerosolization. The atomizer con- tains the heating coil and wick. It is most often contained within the metal, glass, or plastic hous- ing called a cartomizer, tank, or clearomizer, which is screwed into the battery. base liquid This is the liquid to which nicotine and flavoring are added to create e-juice. The two most common base liquids are glycerol and propylene glycol. 697

698 PUBLIC HEALTH CONSEQUENCES OF E-CIGARETTES Term Definition battery The battery is used to power an electronic ciga- rette’s atomizer, and is usually a rechargeable lithium ion battery available in a variety of sizes/ capacities expressed in mAh, commonly in 600, 900, and 1,100 mAh. cartomizer A combined atomizer and cartridge, the carto- mizer combines a heating element and a juice delivery system into a single unit. Cartomizers can be made of plastic, metal, or a combination of both. They are disposable and not considered to be refillable, although some users manage to do so. Cartomizers can come in single-coil, dual- coil, or multiple-coil configurations. Having more than one coil produces twice as much aerosol or the same amount twice as fast from the standard. There are top-coil and bottom-coil configurations. cartridge The mouthpiece that contains the absorbent filler material soaked with e-liquid. This is a plastic or metal covered part of an e-cigarette, primarily of first-generation devices. A single cartridge con- tains about 1 ml of e-liquid. cigalike An electronic cigarette having a form factor similar to a combustible tobacco cigarette. It is generally considered to be the first generation of e-cigarette products. clearomizer A cartomizer that is made of a clear material (usu- ally plastic, Pyrex, or glass) so that the user can see the quantity of e-juice remaining in the unit. Many have milliliter graduations for the capacity of e-liquid left. The common capacity of clearomizers varies from 3 to 6 ml.

APPENDIX C 699 Term Definition coil/heating coil A coil is generally a piece of nichrome or kanthal wire that has been wrapped around a wick. Cur- rent flows through the coil; the coil gets hot and aerosolizes e-liquid. Cartomizers can come in s ­ ingle-coil, dual-coil, or multiple-coil configura- tions. Having more than one coil in an atomizer results in increased production of aerosol as com- pared to single coil. disposable The disposable e-cigarette is designed to be used e-cigarette once and usually comes with no charger. It is a single-piece e-cigarette device. do it yourself Commonly used to refer to preparing and custom- (DIY) izing your own e-juice or refillable solution. dripping Putting e-juice directly on the atomizer. dry puff This refers to the unpleasant taste reported by an e-cigarette user when not enough e-liquid is sup- plied to an atomizer or cartomizer, resulting in poor aerosol and flavor. e-cigar E-cigarette device designed to resembles a tradi- tional tobacco cigar in shape. e-juice, e-liquid The liquid that produces the aerosol in an elec- tronic cigarette. E-liquid is aerosolized by the heating element, and generated aerosol is inhaled by the e-cigarette user. Typically contains glycerol, propylene glycol, nicotine, and flavorings. e-pipe E-cigarette device designed to resemble a tobacco pipe. flavoring The flavorings used in e-liquids, which are usually the same flavorings used in food and drinks. Cer- tain ingredients (particularly sugars and sweeten- ers) are avoided, however, because of the damage they can do to atomizers.

700 PUBLIC HEALTH CONSEQUENCES OF E-CIGARETTES Term Definition mod Short for modification. This originally referred to modifying a flashlight or a battery to be used in vaping, but is now commonly used to refer to any vaping device of second or third generation that is not a cigalike. pen style A style of first-generation e-cigarette device that resembles a pen. personal vaporizer The entire e-cigarette device; usually refers to s ­ econd- and third-generation products. starter kit A kit that includes basic e-cigarette equipment, typically a battery, cartomizer, charger, and instruction manual for the user. sub-ohming Sub-ohming involves vaping using an atomizer coil with a resistance of <1 Ω. This increases the overall power output (wattage) of the device allowing more energy to reach the coil which, in turn, heats up faster and reaches a higher tempera- ture so more aerosol is produced. tank The part of second- or third-generation e-cigarette that holds the refillable solution. Tank is a com- mon name for a refillable clearomizer and it usu- ally holds more e-liquid than cartridges and it is usually manually refilled with e-liquid by the user. throat hit The sensation on the back of the throat that e ­ -cigarette users commonly report after taking a puff on an e-cigarette. vape/vaping The act of using an electronic cigarette. The equivalent of “smoking” for combustible tobacco cigarettes. vaper Someone who uses an electronic cigarette (a per- son who vapes).

APPENDIX C 701 Term Definition vaper’s tongue Used by experienced e-cigarette users to describe the sensation of not being able to taste the flavor in e-liquid when inhaled. vaporizer Used by experienced e-cigarette users to refer to their e-cigarette device. variable voltage/ E-cigarette with variable voltage or variable watt- variable wattage age allows users to control battery output voltage or power of the e-cigarette. Increasing the voltage/ wattage leads to increased coil temperature and, as a result, increased production of aerosol. wick Deliver e-liquid to the coil in electronic ciga- rettes. Most commonly made from silica cord, the wick can also be made from rolled-up steel mesh, ceramic, fiberglass, cotton, or a host of other materials. wire Generally refers to resistance wire used in build- ing coils for atomizers.

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Millions of Americans use e-cigarettes. Despite their popularity, little is known about their health effects. Some suggest that e-cigarettes likely confer lower risk compared to combustible tobacco cigarettes, because they do not expose users to toxicants produced through combustion. Proponents of e-cigarette use also tout the potential benefits of e-cigarettes as devices that could help combustible tobacco cigarette smokers to quit and thereby reduce tobacco-related health risks. Others are concerned about the exposure to potentially toxic substances contained in e-cigarette emissions, especially in individuals who have never used tobacco products such as youth and young adults. Given their relatively recent introduction, there has been little time for a scientific body of evidence to develop on the health effects of e-cigarettes.

Public Health Consequences of E-Cigarettes reviews and critically assesses the state of the emerging evidence about e-cigarettes and health. This report makes recommendations for the improvement of this research and highlights gaps that are a priority for future research.

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