Filter device to reduce cigarette smoke

Details Filter device to reduce cigarette smoke Filter device to reduce cigarette smoke

1998-03-12

1999-06-01

Woo, Jay H.

Gas separation

Combined or convertible

553858, 131175, B01D 4644, A24F 1910

Patent

active

059084790

ABSTRACT:
A filter device for use when smoking cigarettes, which safely carries a lit cigarette therein, allows the smoker to inhale smoke from the cigarette and then either to exhale the smoke into the air or back into the device, which captures the smoke and prevents it from escape into the air.

REFERENCES:
patent: 3946748 (1976-03-01), Frankfurt
patent: 4623367 (1986-11-01), Paulson
patent: 4790332 (1988-12-01), Wallace
patent: 4899766 (1990-02-01), Ross, Jr.
patent: 5088508 (1992-02-01), Duncan
patent: 5160518 (1992-11-01), Vega, Jr.

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