... gels, these products are categorized into large pore silica gel, macro-pore silica gel, B-type silica gel and fine-pore ... pore structures, absorptive performances also vary. With high relative humidity, macro-pore silica gel has a relatively high absorption capacity. Meanwhile ... , fine-pore silica gel has a higher absorption capacity than macro-pore silica gel. The pore structure of B-type silica ...