For the first time in nearly 37 years, new requirements regarding natural ventilation, exhaust systems and the IAQ Procedure will be available in the newly published ANSI/ASHRAE Standard 62.1-2010, Ventilation for Acceptable Indoor Air Quality. The document includes the minimum ventilations rates and other requirements for commercial and institutional buildings. The changes in the 2010 standard include modifications to the Natural Ventilation Rate Procedure.
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