This reusable cigarette holder makes it an easier way to cut back on the tars and nicotines that you inhale with each cigarette. The patented system is design to reduce the harmful effects of smoking up to 50%. This cigarette filter works in two ways to trap and dilute the harmful tars and nicotine before they reach you. Cleaning your Lite'n Up filter should be done every 5-10 cigarettes. You will find that it is easier if you clean it right after finishing a cigarette, before the residue hardens. Pull apart as shown on the illustration on back of the package. The pewter tip should be removed. Use a cotton swab, a twisted piece of tissue or a pipe cleaner to clean the stem, stem slot, barrel, and internal areas of the mouthpiece. Don't try to wipe clean with your hands. Use a nylon bristle clipped from a household brush to gently clean the small air vent. Do not clean with a metal object, such as a needle or pin, which could damage the filter. Wash all four sections of the filter occasionally in a mild soap solution. Some staining will occur with prolonged use. After cleaning, push the filter parts together firmly and use as before.