| 摘要 |
<p>A cigarette combustion unit for use in a hand-held cigarette smoke filtering device for filtering sidestream smoke emitted from a cigarette burning in said unit comprising: i) an elongate closed combustion chamber for a burning cigarette, a lower wall portion of said combustion chamber at least having an air porous portion to permit air to enter said combustion chamber; ii) a cigarette holder in an end of said combustion chamber for holding a cigarette in said combustion chamber with its burning end spaced from chamber interior wall surfaces; and iii) a sidestream smoke outlet in said end above said cigarette holder.</p> |
