1. In lead-acid battery manufacturing, cast welding, battery assembly and packaging processes can generate lead-containing fume and fine airborne particulate at different production stages.

2. Effective capture and filtration of lead-containing contaminants can help reduce airborne exposure and improve the working environment in lead-acid battery production facilities.

3. During the cast welding process, lead-containing fume may be generated and should be captured as close as practical to the point of generation.

4. Battery assembly, component handling and related packaging operations may also generate lead-containing dust, depending on the specific production process and materials involved.

5. Dust-generating finishing, cleaning or handling operations in lead-acid battery production should be provided with suitable local extraction where required.

6. Collected lead-containing fume and dust can be conveyed through ductwork to a centralized dust collector for filtration.

7. PTFE-coated filter cartridges can be used as the primary filtration stage, with an optional H14 HEPA final filter where higher filtration efficiency is required.

8. Final outlet concentration depends on the contaminant characteristics, filtration configuration, operating conditions and applicable emission requirements. Performance should be verified under the actual operating conditions.