Texas Mold Assessment Consultant Practice Exam

What containment method is recommended for a contaminated area of 25 contiguous square feet?

1. Plastic sheets covering the floor only

2. Polyethylene sheeting around the area with negative pressure

3. Cardboard barriers around the area

4. No containment required

The correct answer is: Polyethylene sheeting around the area with negative pressure

The recommended containment method for a contaminated area of 25 contiguous square feet is to use polyethylene sheeting around the area with negative pressure. This method is effective for several reasons. Firstly, using polyethylene sheeting creates a physical barrier that isolates the contaminated area from the rest of the environment. This helps prevent the spread of mold spores and contaminants to other areas, reducing the risk of further exposure or contamination. Secondly, incorporating negative pressure within the contained area is crucial. Negative pressure means that air is drawn into the containment area rather than escaping to the outside. This is important in mold remediation because it helps to capture and contain mold spores and other particulates within the isolated space, ensuring that they do not disperse into the surrounding environment. This method is particularly recommended for areas with a higher risk of contamination spread, as it provides a controlled environment for remediation efforts to take place safely and effectively. The other options do not offer adequate isolation or protection against the transmission of contaminants, which is why they are less effective in situations that require careful containment.