Building owners, managers, designers, and maintenance personnel need reliable information about filtration options, such as: what types of air filtration systems are effective for various CBR agents; what types of air filtration systems can be implemented in an existing HVAC system; what types of air filtration systems can be incorporated into existing buildings when they undergo renovation; and how to properly maintain the air filtration systems installed in a building.

Proper air filtration combined with other protective measures can reduce the risk and mitigate the consequences of a CBR attack. Measures outlined in this article also provide the side benefits of improved HVAC performance - increased building cleanliness, limited effects from accidental releases, and generally improved IAQ.