New and Novel Technologies in Particulate Filtration

Particulate air filtration for Collective Protection Systems (CPS) uses high efficiency particulate air (HEPA) filters. The primary issues that are always being pursued with particulate filter improvements are: 1) lower energy consumption, 2) longer filter life, 3) greater dust load capacity, and 4) easier maintenance without compromising filter efficiency. Over the years the Navy has made significant improvements in particulate filters in all of these areas such that the current system is the best operational air filtration system available. However, recent changes in operational requirements have pushed the need for a review of current equipment and it applicability for dealing with new and emerging threats. This paper will focus on the 200CFM HEPA filter used in CPS systems and present technologies that can potentially improve its capability and performance.