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The smoke  Diaries

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Filter/dilution tunnel. A smoke sample is drawn through a tube in which it can be diluted with air, the ensuing smoke/air combination is then pulled by way of a filter and weighed. This is actually the internationally acknowledged means of measuring smoke from combustion.[66] Smoking is often dated to https://topagencyinchina34679.wikissl.com/1361982/everything_about_tabacco

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