Smoke filters

Details Smoke filters Smoke filters

A - Human Necessities

24

D

131/21

A24D 3/00 (2006.01) A24D 3/04 (2006.01)

Patent

CA 1192468

ABSTRACT IMPROVEMENTS RELATING TO SMOKE FILTERS A smoke filter for a smoking article (e.g. a cigarette) comprises a filter plug having ducts extending partway along the plug from the mouth end thereof, and opening in register with inlets through wrapping means around the plug to provide segregated peripheral venting of the filter. Further apertures in the wrapping means communicate directly with the filter plug away from the ducts to permit ambient air to enter the filter plug to mix with and dilute the smoke being filtered within the plug.

420747

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