Filtro Neto Cigarette Filters If you must smoke protect your health. Reduces intake of tar and nicotine without changing the taste of the cigarette.Non toxic.Use for 5-10 cigarettes.Use filter until the red mark is completely covered. Pack of 20 x 10 filters.If you must smoke why not make Filtro-Neto a must. Confident in the knowledge that it in no way increases your craving for cigarettes, yet successfully filters out up to 50% of the harmful tar content of each cigarette smoked. Each filter lasts for up to 10 tipped cigarettes, then throw away.