Minn. R. agency 144, ch. 4660, VENTILATION, pt. 4660.8340

Current through Register Vol. 49, No. 29, 2025

Part 4660.8340 - FILTERS, NEW CONSTRUCTION

All outside air introduced into living and service areas of a facility shall be filtered. Return air to central ventilation systems shall be filtered.

Minn. R. agency 144, ch. 4660, VENTILATION, pt. 4660.8340

Statutory Authority: MS s 144.56; 144A.02 to 144A.08