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  1. SB7685

    NFPA 820 - Recirculation of Exhaust Airflow for Unclassified Space?

    NFPA 820, if one was to explore using recirculation for an unclassified space, would you need to use no less than 6 air changes as stated in section 9.3.3, or would it be OK to to use NO ventilation requirement, as stated in Note (1) of Table 6.2? Note (1) of Table 6.2 states "The NR...
  2. SB7685

    NFPA 820 - Air Changes for Recirculation of Exhaust Airflow?

    NFPA 820, if one was to explore using recirculation for an unclassified space, would you need to use no less than 6 air changes as stated in section 9.3.3, or would it be OK to to use NO ventilation requirement, as stated in Note (1) of Table 6.2? Note (1) of Table 6.2 states "The NR...

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