The document outlines the ASHRAE Standard 62-2001, which specifies minimum ventilation rates and indoor air quality to ensure acceptable conditions for human occupants. The standard is maintained by a Standing Standard Project Committee (SSPC) and is subject to regular updates through addenda or revisions. The standard applies to all indoor spaces occupied by people, except where other standards dictate larger ventilation requirements. It considers chemical, physical, and biological contaminants but does not address thermal comfort. The standard provides two procedures for achieving acceptable air quality: 1. **Ventilation Rate Procedure**: Requires specified ventilation air quality and quantity. 2. **Indoor Air Quality Procedure**: Controls known and specifiable contaminants to achieve acceptable air quality. Key provisions include: - **Natural Ventilation Systems**: Permitted in lieu of or in conjunction with mechanical systems. - **Ventilating Systems**: Must supply air throughout the occupied zone and prevent reentrainment of contaminants. - **Air Stream Surfaces**: Must be resistant to mold growth and erosion. - **Combustion Air**: Provides sufficient air for combustion and adequate removal of products. - **Particulate Matter Removal**: Uses filters with a minimum efficiency reporting value (MERV) of 6. - **Humidity Control**: Maintains relative humidity between 30% and 60% to minimize microbial growth. - **Microbial Contamination**: Prevents moisture incursion and microbial slime buildup. The standard also includes guidelines for design documentation, construction, and system start-up, emphasizing the importance of controlling contaminants and ensuring the system's functionality over its lifespan.The document outlines the ASHRAE Standard 62-2001, which specifies minimum ventilation rates and indoor air quality to ensure acceptable conditions for human occupants. The standard is maintained by a Standing Standard Project Committee (SSPC) and is subject to regular updates through addenda or revisions. The standard applies to all indoor spaces occupied by people, except where other standards dictate larger ventilation requirements. It considers chemical, physical, and biological contaminants but does not address thermal comfort. The standard provides two procedures for achieving acceptable air quality: 1. **Ventilation Rate Procedure**: Requires specified ventilation air quality and quantity. 2. **Indoor Air Quality Procedure**: Controls known and specifiable contaminants to achieve acceptable air quality. Key provisions include: - **Natural Ventilation Systems**: Permitted in lieu of or in conjunction with mechanical systems. - **Ventilating Systems**: Must supply air throughout the occupied zone and prevent reentrainment of contaminants. - **Air Stream Surfaces**: Must be resistant to mold growth and erosion. - **Combustion Air**: Provides sufficient air for combustion and adequate removal of products. - **Particulate Matter Removal**: Uses filters with a minimum efficiency reporting value (MERV) of 6. - **Humidity Control**: Maintains relative humidity between 30% and 60% to minimize microbial growth. - **Microbial Contamination**: Prevents moisture incursion and microbial slime buildup. The standard also includes guidelines for design documentation, construction, and system start-up, emphasizing the importance of controlling contaminants and ensuring the system's functionality over its lifespan.