Rensselaer Semi-Weekly Republican, Volume 41, Number 19, Rensselaer, Jasper County, 17 November 1908 — Filtering Tobacco Smoke. [ARTICLE]

Filtering Tobacco Smoke.

Users of tobacco should, according to a German investigator, filter the smoke from their pipes through cotton soakeo in ferric salts. By this process the fumes of the essential oil, of the hydrogen sulphide, the cyanhydric acid and about half the nicotine and its products of decomposition are got rid of, yvhile the smoke is not deprived of Ms aroma. e