• Available Formats
    • Availability
    • Priced From ( in USD )

About This Item


Full Description

This addendum addresses outdoor air quality assessment and air cleaning requirements. The current standard requires outdoor air assessment and recommends outdoor cleaning but does not require it. The section where outdoor air cleaning is currently discussed (Section 5.9) is replaced with a new Section 4, which requires outdoor air quality assessment for all ventilation systems. Documented assessment is expected to lead to informed decisions related to the location of intakes and outdoor air cleaning measures.