
HL Filter Multilayer High Effiiciency Filter Bag PP. Multi-Layer Gradient Design: Up to 15 layers of different density for stable efficiency and high dirt holding capacity. High Filtration Efficiency: Achieves up to 99.9% filtration efficiency with absolute particle filtering precision. Oil Absorption Capability: Internal structure absorbs hydrocarbons (oil) from liquids effectively. Food Grade Certification: Passed FDA report and SGS test for food grade PP, PE, and NMO filter bags. Chemical Stability: Made of polypropylene fiber with good chemical stability and micron grade superfine fiber. OEM and Customization: Supports OEM services, custom labels, and production from samples or technical drawings. ISO 9001:2015 Certified: Manufactured in a certified and audited ISO 9001:2015 quality managed factory. 30 Years Experience: 30 years of development in air and liquid filtration with an excellent technical team.