February 9, 2005—The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has made key changes in the 2004 ventilation standard.
ANSI/ASHRAE Standard 62.1-2004, Ventilation for Acceptable Indoor Air Quality, specifies minimum ventilation rates and indoor air quality requirements for commercial and institutional buildings.
The standard incorporates 17 addenda. Among the major changes is revision of the Ventilation Rate Procedure to reflect recent information regarding ventilation impacts on indoor air quality and to clarify the adjustments necessary for space air distribution and system efficiency of multi-zone recirculating systems.
Also revised was the minimum ventilation rate table to apply only to no-smoking spaces by deleting smoking lounges from the list of occupancy categories.
To purchase a copy of the new standard, visit the societys book store. The cost, is $60 for nonmembers and $48 for members.
