Mold Remediation Techniques and Procedures Flashcards

Which personal protective equipment (PPE) is the minimum required for remediating a small mold area (less than 10 sq ft)?

Answer: N95 respirator, safety glasses, and non-porous gloves

For small mold areas under 10 sq ft, minimum PPE includes an N95 respirator, eye protection, and non-porous gloves.

What is encapsulation in the context of mold remediation, and when is it appropriately used?

Answer: Sealing porous materials that cannot be removed with a mold-resistant coating after cleaning

Encapsulation involves applying a specialized sealant over cleaned porous surfaces that cannot be removed, such as structural wood, to prevent spore release.

During post-remediation verification (PRV), what is the clearance criterion that indicates successful remediation?

Answer: Indoor mold spore types and counts similar to or lower than outdoor levels

Successful remediation is confirmed when indoor airborne mold spore types and concentrations are comparable to or lower than outdoor baseline levels.

What is the purpose of a pre-remediation assessment before starting mold remediation work?

Answer: To identify the extent of contamination, moisture source, and develop a remediation plan

A pre-remediation assessment identifies the scope of contamination, locates the moisture source, and allows development of a targeted remediation plan.

When remediating mold on HVAC ductwork, what critical step must be taken first?

Answer: Shut down the HVAC system and seal all supply and return registers

The HVAC system must be shut down and all registers sealed before remediation to prevent spreading mold spores throughout the building via airflow.

What is the primary reason bleach is NOT recommended as the sole treatment for mold on porous materials like wood?

Answer: Bleach cannot penetrate porous surfaces to kill mold roots (hyphae)

Bleach cannot penetrate porous materials like wood, so while it may kill surface mold, the hyphae embedded in the material survive and regrowth occurs.

Which remediation approach is recommended for mold-contaminated carpet in a residential building?

Answer: Remove and discard the carpet as it cannot be adequately remediated

Mold-contaminated carpet should be removed and discarded because the porous fibers and backing cannot be adequately cleaned to remove embedded mold growth.