Filter

Features: 
1) Derived from flow-through catalyst supports where channel ends, act as mechanical 
    filter, are alternatively plugged to force the gas flow through porous walls 
2) Made of specialized ceramic materials such as cordierite
3) Filters of different sizes have been developed and are available as standard 
    products
4) High surface area per unit volume
5) High filtration efficiencies
6) Consist of many small parallel channels, typically of square cross-section, running 
    axially through the part
7) Adjacent channels, act as mechanical filter, are alternatively plugged at each end in
    order to force the diesel aerosol through the porous substrate walls