Practical Application

1. Review the audit report to identify ventilation deficiencies, such as blocked vents, high CO₂ levels, and inadequate exhaust.
2. Uncover blocked supply and return air vents.
3. Ensure that spaces are used for their designed purpose to prevent inadequate ventilation, comfort conditioning, or isolation. For example, avoid using storage areas as office space.
4. Divide the total volume of outside air identified in the audit report by the total number of building occupants to determine L/s (CFM) per person. If the outside air per person is less than 5 L/s (10 CFM) or more than 10 L/s (20 CFM), talk with facilities staff about adjusting the outside air damper to lie within this ventilation range.
5. Verify that exhaust fans for kitchen, bathrooms, janitor closets, high-volume print and copy areas, and disintegrator rooms are vented to the outside and are operating properly. Also ensure that clothes dryers are vented to the outside.
6. Engage a mechanical or TAB contractor to test and balance the ventilation system every five years to maintain prescribed ventilation and exhaust rates and pressure differentials.
7. Coordinate with facilities staff to seal all ducts to prevent air leakage and contaminants from entering and circulating throughout the building.
8. Select and install CO₂ sensors.
9. Talk with FM staff about installing CO₂ sensors for automated DCV, if applicable.