One Kamaya filter lasts for 5 to 7 full cigarettes.
Nicotine and tar are removed when cigarette smoke goes through 4 nicotine reduction holes and hits the wall of the main body of the filter. See the diagram below. The Kamaya filter effectively filters out harmful tar and nicotine while retaining the full flavor of cigarettes. You can see the amount of harmful tar and nicotine removed in the transparent filter.
NO LONGER IMPORTED.
Replaced by the US-made TARGARD.