MRS Mold Containment and Cleanup Practices 3

Question 1

Which EPA-recommended guidance document is frequently referenced as a standard for mold remediation in commercial buildings?

Accepted Answer

EPA 402-K-02-003 (Mold Remediation in Schools and Commercial Buildings)

Answer

EPA 402-K-02-003 is the widely cited EPA guidance document for mold remediation in schools and commercial buildings.

Question 2

What is the recommended approach for cleaning non-porous surfaces contaminated with mold?

Accepted Answer

Scrub with detergent and water, then dry thoroughly

Answer

Non-porous surfaces should be scrubbed with detergent and water to remove mold, then dried thoroughly to prevent regrowth.

Question 3

Why is porous material like drywall typically removed rather than cleaned during mold remediation?

Accepted Answer

Mold hyphae penetrate porous material and cannot be fully removed by surface cleaning

Answer

Mold hyphae grow into the structure of porous materials, making surface cleaning ineffective at eliminating the contamination.

Question 4

What air change rate (ACH) is generally targeted inside a mold containment zone using negative air machines?

Accepted Answer

4–6 ACH

Answer

A rate of 4–6 air changes per hour is generally targeted inside a containment zone to maintain adequate negative pressure and filtration.

Question 5

What is the role of an airlock (decontamination chamber) at the containment entrance?

Accepted Answer

To provide a buffer zone where workers decontaminate between the work area and clean area

Answer

An airlock is a buffer zone where workers decontaminate themselves and materials, preventing direct transfer of contaminants from the work area to clean spaces.

(MRS) Mold Remediation Specialist Practice Test

(MRS) Mold Remediation Specialist Practice Test

MRS Mold Containment and Cleanup Practices 3