I’ve been a smoker for 4 years and the first time I tried to smoke out of a SI Pipe (I currently own the handheld filtered pipe) the smoke was extremely flavorful and cloudy. The carbon filter does an excellent job in cleaning out impurities that are found in the herb, and it always delivers a smooth, clean hit. Also the customer service is excellent, best i’ve ever had from a glass or pipe company. Thanks again SI Pipes.