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  2. Electronic cigarette - Wikipedia

    en.wikipedia.org/wiki/Electronic_cigarette

    A first-generation e-cigarette that resembles a tobacco cigarette, with a battery portion that can be disconnected and recharged using the USB power charger Various types of e-cigarettes from 2015, including a disposable e-cigarette, a rechargeable e-cigarette, a medium-size tank device, large-size tank devices, an e-cigar, and an e-pipe. An ...

  3. Vibration theory of olfaction - Wikipedia

    en.wikipedia.org/wiki/Vibration_theory_of_olfaction

    The vibration theory of smell proposes that a molecule's smell character is due to its vibrational frequency in the infrared range. This controversial theory is an alternative to the more widely accepted docking theory of olfaction (formerly termed the shape theory of olfaction), which proposes that a molecule's smell character is due to a range of weak non-covalent interactions between its ...

  4. Tobacco smoking - Wikipedia

    en.wikipedia.org/wiki/Tobacco_smoking

    Tobacco smoking is the practice of burning tobacco and ingesting the resulting smoke. The smoke may be inhaled, as is done with cigarettes, or simply released from the mouth, as is generally done with pipes and cigars. The practice is believed to have begun as early as 5000–3000 BC in Mesoamerica and South America. [ 1 ]

  5. Cigarette filter - Wikipedia

    en.wikipedia.org/wiki/Cigarette_filter

    A cigarette filter, also known as a filter tip, is a component of a cigarette, along with cigarette paper, capsules and adhesives. Filters were introduced in the early 1950s. [3] Filters may be made from plastic cellulose acetate fiber, paper or activated charcoal (either as a cavity filter or embedded into the plastic cellulose acetate fibers).

  6. Types of tobacco - Wikipedia

    en.wikipedia.org/wiki/Types_of_tobacco

    The definition states that type 22 tobacco is a type of dark fire-cured tobacco, known as Eastern District fire-cured, produced principally in a section east of the Tennessee River in southern Kentucky and northern Tennessee. Most type 22 tobacco in northern Tennessee is grown in Robertson and Montgomery counties in Middle Tennessee.

  7. Clean air delivery rate - Wikipedia

    en.wikipedia.org/wiki/Clean_Air_Delivery_Rate

    Clean air delivery rate. The AHAM-certified seal lists a rating for tobacco smoke, pollen, and dust removal, and a rating for room size. The clean air delivery rate (CADR) is a figure of merit that is the cubic feet per minute (CFM) of air that has had all the particles of a given size distribution removed. For air filters that have air flowing ...

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