The openings in these outside walls have to include at the least a person 3rd of the overall wall space of the parking level in issue. Alternatively, the region on the ventilation openings should be no less than 2.5% with the parking level floor region. Odor Manage: Musty odors are https://basementventilation46678.blogdun.com/37327086/the-2-minute-rule-for-car-park-ventilation