Preventive Maintenance Sustains Good IAQ
Picture Series 6:
Preventive Maintenance Sustains Good IAQ
- Maintain Up-to-Date Building Records
- Establish an Effective PM Program
- Train Your Key Maintenance Employees on IAQ
- Maintain All Equipment on Time
- Keep a Clean Mechanical Room
- Periodically Check Exhaust Air Flows
- Periodically Check Pressure Relationships
- Periodically Check Temperature, Humidity, and CO2
- Periodically Check Supply Air and Outdoor Air Flows
- Make Use of I-BEAM Forms in Your Maintenance Program
- Monitoring IAQ in Occupied Spaces
- Monitoring PM Throughout Building
Periodically Check Pressure Relationships

Mouse over the picture above to see messages which are referenced in more detail below.
(Hot Spot over the smoke pencil and smoke.)
- Remember...“The pressure contours in the building determine air flow and pollution transport through the building.”
- Prepare a desired air flow pressure contour map. Exhaust areas should be under negative pressure relative to surrounding areas, and the building in most cases should be positively pressurized, as is demonstrated in this picture.
- Of particular importance are entrances from the street, loading docks, and garages which should be positively pressurized to prevent street contaminants, loading dock contaminants, and garage contaminants from entering the building.
Previous | Home | Next - Periodically Check Temperature, Humidity, and CO2
![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif)