What is the minimum protection required in Trigger task class 3?

The minimum protection required in Trigger task class 3 is a full face Powered Air-Purifying Respirator (PAPR) or supplied air respirator (SAR). This requirement is based on the high-risk nature of tasks classified under Trigger class 3, which often involve significant exposure to contaminants or hazardous environments.

A full face PAPR or SAR provides comprehensive facial protection and respiratory safety, ensuring that workers are shielded from inhaling harmful lead particles and vapors. This level of protection is essential because it covers the entire face, allowing for better sealing and reducing the risk of exposure to hazardous materials that can enter through the eyes as well as the respiratory system.

In contrast, the other options do not meet the necessary safety standards for this task class. For instance, while a full face respirator does offer robust protection, not all variations may provide the airflow and comfort needed in prolonged exposure situations as a PAPR designed specifically for high-particulate environments. Similarly, a half mask with filters provides less protection by leaving the eyes and face exposed, which is not adequate for the risks associated with Trigger task class 3, and a safety mask only offers minimal protection which is clearly insufficient for this level of hazard.