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(s) of Assessment: May 8, 2025
A dull odor was sensed when entering the space that was not present in the adjoining rooms. The assessor compared the odor to faint "locker room" odor.
The drywall and carpet were probed with a moisture meter. No elevated moisture was detected in either building material.
The carpet was scanned with an ultra violet light. Several stains were observed, however the odor sensed did not appear to be emanating from these areas.
One of the stains was bisected by a carpet square seam. The carpet was lifted up at this location so the underside/substrate could be observed. No visible mold growth or odors was observed underneath the carpet.
The space was scanned with a thermal infrared camera. No thermal anomalies indicative of moisture intrusion were observed.
The space is supplied outdoor air via two ceiling-mounted diffusers. Temperature control occurs via a sperate Fan Coil Unit (FCU) located along the wall.
No odors were being emitted from the ceiling mounted supply diffusers.
The FCU was assessed:
- No odors were immediately identifed upon removing the cover, however when the unit was started up after assessment, a dull odor was sensed emanating from the unit briefly. This odor is sometimes associated with dust on the coils that emanates an odor when heated.
- The filter was overloaded.
- No odors or concerns were identifed with the coils or drain pan.
- Some debris was observed lodged within the fins (metal plates used for heat transfer within FCU).
A work order was placed for Building Maintenance (HVAC) to clean the unis coils, drain pan, perform a general assessment, and to change the filter.