(2 RC) - This document provides practical recommendations that will help prevent, minimize, or resolve IAQ problems in commercial and institutional buildings. It discusses a range of topics related to IAQ management, including the control of airborne pollutants, the introduction and distribution of adequate make-up air, and the maintenance of an acceptable temperature and relative humidity. This document is directed primarily at employers, building owners and managers, and others responsible for building maintenance, but may also be used as a basic reference for all those involved in IAQ issues.