What differentiates Level 3 from Level 2 containment?

The distinction between Level 3 and Level 2 containment protocols primarily relates to the safety measures taken during lead abatement activities and the level of exposure risk to residents. In Level 3 containment, the risk is deemed significant enough that residents cannot be in the dwelling during the day when work is being conducted. This is to prevent any potential lead exposure while abatement activities are being carried out, which can include more intrusive methods that disturb paint and possibly generate lead dust.

This restriction is a critical part of ensuring the safety and health of residents, as even minor disturbances can lead to the release of hazardous materials, and it is best practice to eliminate any risk of exposure during these times. Thus, the requirement for residents to not be in the dwelling reflects the heightened precautions taken at this level as compared to Level 2 containment, where such measures may be less stringent.