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IICRC MRS Complete Test Guide for
Mold Remediation2026 Questions and
Answers (100% Correct Answers)
Already Graded A+
The primary purpose of using containment during mold
remediation is to prevent cross-contamination. Ans:
Containment
© 2026 Assignment
A negative pressure of 0.05 inches of water column is
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typically required between the containment area and the
Expert
surrounding environment during remediation. Ans:
Pressure Differential
6-mil polyethylene sheeting is the most appropriate
material for building a containment barrier. Ans:
Containment Barrier Material
High-efficiency particulate air (HEPA) filtering is typically
employed to effectively control airborne spores during
remediation. Ans: Airborne Spores Control Method
The best practice for removing contaminated materials
such as drywall is gently cutting and removing to
minimize dust. Ans: Best Practice for Removing
Contaminated Materials
Air monitoring should be conducted during mold
remediation. Ans: Air Monitoring Timing
, 2
Ensures that containment is effective and that spore levels
are controlled throughout the remediation process. Ans:
Continuous air monitoring
Filters out 99.97% of airborne particles, making it suitable
for mold remediation. Ans: P100 respirator
Household detergent, vinegar, and sodium hypochlorite
(bleach) are all effective, with sodium hypochlorite being
widely used due to its effectiveness. Ans: Effective
© 2026 Assignment
cleaning agents against mold
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Controlling humidity is essential in preventing mold after
Expert
a water incident, especially when humidity levels are over
60%. Ans: Critical factor to prevent mold growth in water-
damaged buildings
Removal and disposal of porous materials like carpets is
often the best approach as they can trap mold spores.
Ans: Effective strategy for managing mold on porous
materials
Prevents external pollutants and mold spores from
entering the containment area, protecting the cleanup
effort. Ans: Significance of establishing negative air
pressure in containment
Visible mold growth, musty odors, and water stains on
walls are indicators, while high levels of UV light are not.
Ans: Common indicators of mold infestation
Negative pressure containment is often used in larger
remediation projects. Ans: Containment system used in
larger remediation projects
IICRC MRS Complete Test Guide for
Mold Remediation2026 Questions and
Answers (100% Correct Answers)
Already Graded A+
The primary purpose of using containment during mold
remediation is to prevent cross-contamination. Ans:
Containment
© 2026 Assignment
A negative pressure of 0.05 inches of water column is
Guru01 - Stuvia
typically required between the containment area and the
Expert
surrounding environment during remediation. Ans:
Pressure Differential
6-mil polyethylene sheeting is the most appropriate
material for building a containment barrier. Ans:
Containment Barrier Material
High-efficiency particulate air (HEPA) filtering is typically
employed to effectively control airborne spores during
remediation. Ans: Airborne Spores Control Method
The best practice for removing contaminated materials
such as drywall is gently cutting and removing to
minimize dust. Ans: Best Practice for Removing
Contaminated Materials
Air monitoring should be conducted during mold
remediation. Ans: Air Monitoring Timing
, 2
Ensures that containment is effective and that spore levels
are controlled throughout the remediation process. Ans:
Continuous air monitoring
Filters out 99.97% of airborne particles, making it suitable
for mold remediation. Ans: P100 respirator
Household detergent, vinegar, and sodium hypochlorite
(bleach) are all effective, with sodium hypochlorite being
widely used due to its effectiveness. Ans: Effective
© 2026 Assignment
cleaning agents against mold
Guru01 - Stuvia
Controlling humidity is essential in preventing mold after
Expert
a water incident, especially when humidity levels are over
60%. Ans: Critical factor to prevent mold growth in water-
damaged buildings
Removal and disposal of porous materials like carpets is
often the best approach as they can trap mold spores.
Ans: Effective strategy for managing mold on porous
materials
Prevents external pollutants and mold spores from
entering the containment area, protecting the cleanup
effort. Ans: Significance of establishing negative air
pressure in containment
Visible mold growth, musty odors, and water stains on
walls are indicators, while high levels of UV light are not.
Ans: Common indicators of mold infestation
Negative pressure containment is often used in larger
remediation projects. Ans: Containment system used in
larger remediation projects
