Activated Carbon Fiber felt adsorption capacity for organic gases and odour substances (such as butyl mercaptan etc.) is better than the granular activated carbon (GAC) about a few times to several decad times, and the inorganic gas also have better absorption capacity, and inorganic material solution, dyes, organic and noble metals there are 5-6 times higher than the GAC. On the microbes and bacteria also have a good absorption capacity (such as coli on the absorption rate of 94-99 %), and Adsorption in low concentration possess particularly good adsorption capacity. In addition, the adsorption capacity of ACF is special excellent for the gases concentration below 1 ppm (v/v)..