Low CO cigarette

A cigarette smoking article achieves very low levels of CO and other gas phase components by means of substantial air dilution, but has an acceptable pressure drop and sufficient delivery of particulate matter to provide a flavorful smoke. The filter has two sections, an upstream section which has s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NESTOR, TIMOTHY BRIAN, GENTRY, JEFFERY SCOTT, HAYWORTH, ROGER GRADY, JONES, JR., ELBERT CURTIS, BANERJEE, CHANDRA KUMAR, TAYLOR, JOANNE NAOMI
Format:	Patent
Sprache:	eng
Schlagworte:	CIGARETTES CIGARS HUMAN NECESSITIES MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES MOUTHPIECES FOR CIGARS OR CIGARETTES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SMOKERS' REQUISITES TOBACCO TOBACCO SMOKE FILTERS TRANSPORTING
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Beschreibung
Zusammenfassung:	A cigarette smoking article achieves very low levels of CO and other gas phase components by means of substantial air dilution, but has an acceptable pressure drop and sufficient delivery of particulate matter to provide a flavorful smoke. The filter has two sections, an upstream section which has substantially no pressure drop thereacross and a downstream section which provides substantially all the pressure drop of the filter. Dilution air is admitted to the upstream section of the filter to mix with mainstream smoke before it passes through the downstream section of the filter and thereby reduce the CO and gas phase levels in the smoke.