CPR Microbial Remediation Protocols 2

Question 1

When performing mold remediation in a Type 3 containment, what is the minimum air change rate required per hour?

Accepted Answer

12 air changes per hour

Answer

IICRC S520 requires a minimum of 12 air changes per hour inside Type 3 containment to maintain negative pressure and control airborne spore dispersal.

Question 2

Which organism is commonly associated with 'black water' Category 3 water damage and poses the greatest microbial risk?

Accepted Answer

Stachybotrys chartarum

Answer

Stachybotrys chartarum thrives in wet cellulose materials often present after Category 3 flooding and produces mycotoxins linked to serious health effects.

Question 3

A restorer discovers active mold growth behind a vinyl wall covering. Which initial step is most critical before removal?

Accepted Answer

Establish containment to prevent cross-contamination

Answer

Establishing containment before disturbing mold growth prevents spores from spreading to unaffected areas during the remediation process.

Question 4

What does the term 'normal fungal ecology' mean in the context of post-remediation verification?

Accepted Answer

Indoor spore types and counts similar to outdoor reference samples

Answer

Post-remediation clearance requires indoor air samples to reflect spore types and concentrations consistent with outdoor baseline conditions, not necessarily zero spores.

Question 5

Which PPE respirator class is the minimum required for handling Category 1 water damage with visible mold growth?

Accepted Answer

Half-face APF-10 respirator with P100 filters

Answer

IICRC S520 recommends a minimum half-face APF-10 respirator with P100 particulate filters when visible mold is present, even in Category 1 situations.

(CPR) Certified Professional Restorer Practice Test

(CPR) Certified Professional Restorer Practice Test

CPR Microbial Remediation Protocols 2