Guidance for Filtration and Air-Cleaning Systems to Protect Building Environments from Airborne Chemical, Biological, or Radiological Attacks
April 2003
DHHS (NIOSH) Publication Number 2003-136
![cover page for document 2003-136](/niosh/docs/2003-136/images/2003-136a.jpg)
This document provides preventive measures that building owners and managers can implement to protect building air environments from a terrorist release of chemical, biological, or radiological contaminants.
This document includes information about:
- Filtration and Air-Cleaning Principles
- Specific recommendations
- Economic Considerations