Thank you for your attention to this matter.
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: February 12 and March 3, 2026
The space consists of drywall walls, carpet, and a drywall ceiling.
The relative humidity (20.5%) could be considered low, however, it should be noted that HCPSS does not humidify via the HVAC system as it is not the industry standard for HVAC design for this region and it can introduce additional clinical environmental concerns (ex: humidifier fever).
The carbon dioxide (761 parts per million (ppm) and carbon monoxide (0.0 ppm) were acceptable.
The space was assessed for visible mold growth on surfaces. No visible mold growth was observed.
No moldy, musty, or other malodors were identifed.
The carpet was probed with a moisture meter. No elevated moisture was detected.
A thermal screening was conducted with a thermal infrared camera. No thermal anomalies indicative of moisture intrusion were identified.
The space has two air purifiers (High Efficiency Particulate Air infused with carbon). One of the air purifiers was in a secluded space with restricted air flow clearance . The air purifier was moved to allow for approximately three feet of clearance.
The air purifiers had deposits of dust on the inlet grille.
Moderate to heavy dust deposits were observed on musical instruments such as drums and guitar cases.
Moderate to heavy dust deposits were observed on the metal shelving (adjoining the main hallway of the portable).
A concern was raised regarding the type of cleaner used to clean vomit previously:
- The Carpet Cleaner reported to have been used by Custodial Services (Spartan, Green Solutions Carpet Cleaner) is not classified as hazardous under the Globally Harmonized System (GHS).
- The Odor Eliminator (Simoniz) represents an eye hazard if product makes contact with the eye.
- A photoionization detector was used to screen the ambient air and the location where the cleaning took place (at floor) for Volatile Organic Compounds (VOCs). No VOCs were detected at the floor in in general within the space.
Given the time that has elapsed since cleaning (off-gassing), lack of odor and VOCs in the space, and outdoor air being supplied via the Heating Ventilation and Air Conditioning (HVAC) system, the use of the reported cleaning chemicals in the space does not appear to represent an environmental concern for the space.
While in class, the individual is seated directly below the supply air duct diffuser. The supply duct has fiberglass insulation on the interior, which has been encapsulated. Due to the encapsulation, an exposure pathway from fiberglass fibers does not appear to be present.
The Office of the Environment recommended the teacher move the individuals seat from directly below the supply ductwork to avoid warm air (heating season) from potentially accelerating evaporation of the eye and potentially causing irritation.
The musical instruments are to be dusted. The Office of the Environment understands that the dusting of musical instruments in the responsibility of the music staff member in the space (not custodial).
Custodial is to vacuum the dust from the air purifier inlet grilles. Additionally, there are metal shelves (adjoining the main hallway) that are to be dusted.