The GridBLOK™ is the foundation for the next generation of gas-phase air filtration products. This revolutionary new medium is in the form of an extruded monolithic block consisting of a large number of small parallel cells or channels. The GridBLOK™ is composed of essentially 100% adsorbent materials allowing the entire composite structure to function as a gas filter. The new product features include no bypass, low pressure drop and turbulent air flow with full utilization of the media and a dust free filter design. The GridBLOK is a self-supporting, life testable delivery system that eliminates the threat of media settling.