Identify deficiencies that may impact IEQ and/or sources of odor concerns. Typically includes the following depending on the nature of concern, but not limited to:
- interview/questionnaire of concern individual(s)
- inspection above drop ceiling (condition of roof deck, pipe insulation, return air plenum)
- inspection of ventilation system (operation of variable air volume box and outdoor air dampers, check controls, measurements of carbon dioxide, temperature and relative humidity, sources near outdoor air intake, measure return and supply air volume, cleanliness of coils, liner and condensate pan)
- inspection of exterior
- inspection below drop ceiling (housekeeping, sink and floor drain traps, signs of past and present moisture concern via visual and/or moisture meter, mold growth, ensure connection of current and capping of abandoned sanitary vents, odorizers, excessive plants and fabric items, identify potential pathways, and measure volatile organic compounds, carbon monoxide, and lighting)
Date of Assessment(s): February 28, 2020 (visits made at 7 a.m. and 2 p.m. hours)
No concerns were observed above the drop ceiling.
Housekeeping of the room was found to be acceptable.
No outstanding odors were detected.
Signs of moisture or mold growth were not observed.
The condition of the dedicated outdoor air handling unit serving the area was in acceptable condition and the outdoor air damper was open.
A carbon dioxide measurement was taken in the afternoon to assess the ventilation unit's introduction of outdoor air (addresses odors, stagnant / stuffy air). The carbon dioxide reading was 916 parts per million (ppm) and acceptable (below outdoor ppm + 700 ppm). Outdoor air was 409 ppm. The room was occupied with 19 people and classroom door closed.