Each resealable pack contains 100 filters, and each filter can use up to 6 cigarettes. When the filter is covered with tar, replace the filter with a new one. New Updated Disposable Cigarette Filters to Help Rejuvenate Your Body and Reduce Smoking Harm Reduces most of the tar and nicotine in cigarette smoke Easy to use disposable filters. Once the filter is full, just replace it with a new one, which will not change the taste of the cigarette. Smokeless filters will give you a smoother and better smoking experience without changing the taste of the cigarette. Regular use of the filter can reduce coughing and shortness of breath and relieve sore throats. Note: These filters are not suitable for roll-up and ultra-thin cigarettes