... as air dust. Absorption capacity is big, so as for the porodity, with honeycomb-like structure. product specswidth 1 ... finemediumlargemain indexcarbon content ≥40%benzene absorption rate≥28% tetrachloride carbon absorption rate ≥50% air resistancetake 10MM as example ≤20Pdust ... fiber base. It is of good absorption performance, especially for the harmful gas such as odor, benzene, xylene, formaldehyde ...