| 摘要 |
<p>A smoking aid for reducing concentrations of poisonous substances contained in tobacco smoke including a pipe bowl (1a) having a smoke retaining cavity (1b), a stem (1c) coupled with the pipe bowl (1a) and a mouthpiece (2) connected to the stem (1c). A cap-like member (3) is screwed to a top portion of the pipe bowl (1a) such that a space formed between the pipe bowl (1a) and cap-like member (3) can be adjusted. A hole (3b) is formed in a top wall of the cap-like member (3), through said hole (3b) a root portion of a cigarette (4) may be protruded into the smoke retaining cavity (1b). By moving the cap-like member (3) relative to the pipe bowl (1a) to adjust a dimension of the space, it is possible to adjust an amount of clean air introduced into the smoke retaining cavity (1b) to control a dilution of tobacco smoke.</p> |
