Sorptive duct filter especially for vehicle air-conditioning systems comprises a specified web structure with specified active carbon sorptive agent

摘要

A sorptive duct filter especially for vehicle air-conditioning systems and consisting of activated carbon as sorptive agent as well as a filter for VOCs, a buffer for water and an ozone filter is such that (1) the filter is a web with openings forming =55% of its surface and there being a maximum of 45 cells/cm2; and (2) the sorptive agent is of pore size distribution with micropore volume =0.4 cm3/g and mesopore volume =0.15 cm3/g.