The Bio Pipe filters are one of our most popular filters. They can also be easily used on the end of a standard cigarette. The practical design of the Bio Pipe Filters makes it easy to hold. Bio Pipe filters are hassle free – just use and toss away. The filter should be thrown away when it gets extremely dark in color. The unique design of these filters helps to lower the temperature of your Dokha intake, reduces stimulation on the tongue and removes around 80% of tar and nicotine. Using the Bio Pipe filter does not change the taste or flavour of your Dokha.