What Is Mold Clearance Testing?
Mold clearance testing is performed after a remediation contractor finishes mold removal. The purpose is to confirm the affected area meets clearance criteria before containment barriers are removed and the space returns to normal use. Under NYS Article 32, a licensed mold assessor performs this verification independently from the remediation contractor.
Visual Inspection
The assessor visually inspects the remediated area while containment is still in place, checking for any remaining visible mold, staining, or debris that should have been addressed during remediation.
Air Sampling
Air samples are collected inside the containment area and in a control area outside it. Results are compared to determine whether indoor spore levels have returned to background conditions.
Moisture Verification
Moisture readings are taken in the remediated area to confirm that the underlying moisture source has been addressed and that materials are dry enough to prevent regrowth.
Written Clearance Report
A written report documents the visual findings, air sample results, moisture readings, and whether the area passes or fails clearance criteria. This report can be used for landlord, tenant, insurance, or contractor documentation.
Why Independent Clearance Matters
The contractor who performed the remediation should not verify their own work. An independent assessment by a licensed mold assessor who does not sell remediation ensures there is no conflict of interest. AirQC does not perform remediation. Our clearance findings are objective, and our reports document whether the work was completed to an appropriate standard.
When to Schedule Clearance Testing
Clearance testing should happen after the remediation contractor finishes work but before containment barriers are removed. If the area has already been opened, clearance results may be less conclusive because outdoor air has mixed with the indoor environment. The best time to test is when containment is still intact, the area has been cleaned, and materials have dried.
Who Needs Clearance Testing?
Post-remediation clearance is commonly needed by landlords verifying contractor work, tenants who want independent confirmation, property managers documenting compliance, insurance companies requiring proof of completed remediation, and remediation contractors who need third-party verification to close out a project. In NYC, clearance testing is standard practice for any professional mold remediation job.
Common Questions About Clearance Testing
Mold Testing & Inspection Across NYC
AirQC provides NYS-licensed mold testing, air sampling, mold swab testing, moisture checks, thermal imaging, and written lab-supported reports across all five boroughs.
Related services: Indoor Air Quality Testing · Post-Fire Smoke & Odor Testing
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