Additional Details ------------------------------ Directions: 1. Inspect the filter for any damage or defects before use. 2. Remove the old or used filters from your respirator. 3. Align the bayonet fitting of the new filter with the respirator. 4. Insert and turn the filter until it locks into place securely. 5. Ensure the respirator fits properly and seals to your face. 6. Replace the filters according to the manufacturer's recommendations or when they become dirty, damaged, or difficult to breathe through.