20*20*2cm Pleated Panel Paper Air Filter Ventilation System for HVAC G4

20*20*2cm Pleated Panel Paper Air Filter Ventilation System for HVAC G4. G4 High Efficiency: Achieves 90% efficiency for 5um particles, ideal for pre-filtration. Customizable Size: Available in multiple standard and custom dimensions to fit specific HVAC systems. Cost-Effective Design: Lightweight and economical with low resistance and large filter area. Durable Frame: Constructed with high-strength cardboard frame for structural integrity. Versatile Applications: Suitable for HVAC, clean rooms, hospitals, and industrial spray booths. ISO & CE Certified: Products pass ISO9001:2008 and CE certifications for quality assurance. Fast Delivery: Short delivery time of 7-10 days supported by strong production capacity. OEM Experience: Over 10 years of OEM service experience in the air filter field.