Additional Details ------------------------------ Directions: 1. Ensure the PAPR system is properly assembled. 2. Inspect the filter for damage or defects before each use. 3. Install the filter according to the manufacturer's instructions. 4. Power on the PAPR system and adjust the blower speed as needed. 5. Perform a user seal check if required by the specific headgear type. 6. Replace the filter when it becomes damaged, dirty, or difficult to breathe through.