What should be done with HVAC systems and vents during microbial remediation?

During microbial remediation, it is essential to cover HVAC systems and vents to prevent the spread of contaminants and spores throughout the building. Covering these systems helps in containing the affected area and reduces the risk of cross-contamination to unaffected spaces. By using plastic sheeting or other appropriate barriers, the spread of microbial growth can be minimized, ensuring a more controlled remediation process.

Covering also allows for the remediation team to focus on treating the contaminated areas without introducing additional particles into the air. This step is crucial because if HVAC systems are left exposed, they can inadvertently circulate harmful spores or particles, exacerbating the contamination problem and posing health risks to occupants.

In contrast, removing and replacing HVAC systems is often not necessary during microbial remediation unless they are heavily impacted and cannot be cleaned effectively. Leaving them exposed creates an open pathway for contaminants to spread, and disconnecting all power would stop air circulation and may hinder proper ventilation during the remediation process. Therefore, covering HVAC systems is the most appropriate and effective measure during microbial remediation operations.