How can a BE program effectively address odor complaints from building occupants?

• A. Identify sources, improve ventilation, use filtration or source control, and communicate findings and actions to occupants.
• B. Ignore complaints.
• C. Evacuate occupants.
• D. Replace all materials with fragrance-free options.

Answer: (A)

Addressing odor complaints effectively comes from a systematic approach to indoor air quality that targets the source, improves dilution, and maintains clear communication with occupants. Start by identifying potential odor sources—this could be emissions from cleaning products, building materials, furnishings, moisture-related microbial growth, or activities by occupants. Pinpointing where odors originate allows you to target the right interventions rather than guessing.

Next, improve ventilation to dilute odor-causing substances. Increasing outdoor air intake within comfort and energy constraints helps reduce concentrations of odors in occupied spaces. Pair this with appropriate filtration to capture odor-causing particles and gases; using higher-efficiency filters (and, where needed, activated carbon or other adsorptive media) can remove volatile organic compounds and other odorants from the supply air.

Source control and maintenance are also key. This means substituting or modifying problematic materials or products where feasible, sealing or isolating odor sources, and maintaining HVAC systems so they don’t spread odors through recirculated air. Regular maintenance, humidity control, and proper commissioning ensure the system isn’t contributing to odor issues over time.

Finally, communicate what’s found and what actions are being taken to occupants. Sharing findings, expected timelines, and any interim measures helps build trust, reduces confusion, and aligns everyone on the plan to improve air quality.

Other options miss the mark because simply ignoring complaints is unsafe and unethical, evacuating occupants is an excessive and disruptive response, and replacing all materials with fragrance-free options doesn’t address the root cause or always fit practical constraints.