1. Ventilation

* 1. Located unit ventilator.

* 2. Located air supply and return vents.

* 3. Ensured air is flowwing from supply vent.

* 4. Ensured air supply pathway is not obstructed.

* 5. Ensured there are no vehicle exhaust, kitchen/food, and chemical odors in the classroom.

* 6. Ensured there are no signs of mold or mildew(refer to Appendix H of the IAQ Reference Guide).

* 7. Determined operability of windows.

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