A personal vaporizer, commonly known as an e-cigarette or e-cig, is a device that simulates tobacco smoking by atomising a flavoured liquid (optionally containing nicotine), producing a smoke-like vapour. Personal vaporizers provide an alternative to traditional tobacco smoking. However, the vapor emitted, unlike tobacco smoke, contains no tar, known carcinogens or any other known to be harmful substances and studies have shown any nicotine to be absorbed in mouth and/or lungs of the e-smoker for 98% or more. Thus there are no second hand vapor issues; the vapor is not smoke so second-hand smoke is totally absent.
The liquid utilised in personal vaporizers consists of pharmaceutical or food grade propylene glycol, flavourings, glycerine, water, alcohol and nicotine if desired. Nicotine amounts are typically available in ranges from zero to 36mg per ml.
A small number of users experience allergic reaction to propylene glycol; a glycerine-based e-liquid may be used instead.
Care should be taken to keep the liquid out of reach of children and pets as nicotine is toxic.
The personal vaporizing device comes in various models and colours, many of which are similar to the size of actual cigarettes, pipes and cigars.
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