The primary purpose of Cigarette filters rods is intended to reduce the amount of smoke, tar, and fine particles inhaled during the combustion of a cigarette. Filters also reduce the harshness of the smoke and keep tobacco flakes out of the smoker’s mouth.Mono Acetate, Capsule filter rods, Double capsule filter rods, Charcoal filter rods, Recess filter rods, Colorful filter rods