Factory Price Air Purifier HEPA Particle Filter Replacement Blueair 200/300 Series Pollen Dust Removal 203 270e 303 201 Paper Frame

Factory Price Air Purifier HEPA Particle Filter Replacement Blueair 200/300 Series Pollen Dust Removal 203 270e 303 201 Paper Frame. High Efficiency Filtration: H11/H12/H13 HEPA grade with 99.97% efficiency for 0.3-micron particles. 100% Compatibility: 1:1 premium replacement for Blueair, Dyson, and Shark models with zero sensor errors. Customizable Dimensions: Full OEM/ODM support for length, width, thickness, and frame materials. Premium Activated Carbon: High-iodine coconut shell carbon for superior odor and VOC removal. Certified Quality: Manufactured to EN1822 standards with available COA and third-party test reports. Sample Refund Policy: Sample fee fully refunded upon reaching MOQ for first bulk order. Durable Construction: Folded filter design with precise sealing to prevent air leakage. Low Pressure Drop: Initial resistance between 180Pa and 220Pa to protect purifier motors.