In mold remediation, Air Filtration Devices (AFDs) are not required to be what type of filtration?

In mold remediation, Air Filtration Devices (AFDs) are primarily used to capture airborne mold spores and other particulate matter. While HEPA (High-Efficiency Particulate Air) filters are a commonly used filtration standard in such scenarios due to their ability to capture at least 99.97% of particles that are 0.3 microns in size, they are not the only type of filtration technology available.

ULPA (Ultra-Low Penetration Air) filters offer even higher filtration efficiency than HEPA, capturing a higher percentage of even smaller particles, but they are not typically necessary for general mold remediation efforts unless extremely high levels of cleanliness are required. Activated carbon filters are effective in adsorbing odors and certain volatile organic compounds (VOCs), but they are not specifically tailored for particulate matter. Fiberglass filters, while commonly used in HVAC systems, are relatively inefficient at capturing small particles and mold spores.

Therefore, while HEPA filtration is essential in many remediation contexts, AFDs are not required to include ULPA or specialized activated carbon types for effective mold removal. This distinction highlights that while HEPA is beneficial, it does not encompass all possibilities in filtration options for AFDs in mold remediation.