Property managers
Biohazard Cleanup Questions Property Managers Should Ask
A practical checklist for landlords, HOAs and property managers handling a biohazard incident.
A persistent odor after an incident is a sign that something is still in the building. Understanding why can help you ask the right questions.
Why odors linger
Odor-causing compounds soak into porous materials such as carpet, padding, drywall, wood and insulation. They can also travel through ductwork and wall cavities. Sprays and candles cover the smell for a short time, but the source remains and will reassert itself, especially on warm, humid days.
Common causes
- Decomposition of a person or animal.
- Bodily fluids that soaked into materials.
- Sewage or contaminated water.
- Spoiled food and waste in hoarding conditions.
- Mold from long-standing moisture, and smoke residue.
How professionals approach it
Locate the source
They look for the origin, including hidden areas such as subfloors, wall cavities and HVAC systems.
Remove what cannot be cleaned
Soaked porous materials are removed.
Clean surfaces
Residues left behind on hard surfaces are cleaned off.
Treat the air and materials
Depending on conditions, providers use HEPA air scrubbers, hydroxyl generators, thermal fogging or other tools. Each has pros and cons, and the right choice depends on the odor and whether the space is occupied.
Seal and verify
Sealants may be used on framing or subfloor, and the space is checked after treatment.
A word on ozone
Ozone generators are sometimes marketed for odor removal. The EPA warns that ozone can irritate the lungs and should not be used in occupied spaces. If a provider uses ozone, ask how they keep the space safe and ventilate afterward.
What to avoid
- Do not use repeated fragrance sprays as a long-term fix.
- Do not tear out materials without protective equipment if contamination is possible.
- Do not assume the problem is solved because the smell fades for a day.
Patience and realism
Severely affected properties may need multiple treatments. Be cautious about any promise of a specific result before the property has been seen.
Questions to ask
- What do you think is causing the odor?
- What methods will you use, and why?
- Is the space safe to occupy afterward?
- How will you check whether the treatment worked?
Learn about odor removal and decontamination referrals.
Sources and further reading
Please note. This article is general information, not medical, legal or safety advice. Youngstown Biohazard Cleanup is an independent referral service, and cleanup is performed by independent providers.
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