1.[Compatible Models]Replacement filter set compatible with series 14 to maintain optimum performance. Please ensure the model compatibility before making your purchase. 2.[True H13 Hepa Filter]Our replacement filters feature high-grade H13 true HEPA material that meets the High-Efficiency Particulate Air (HEPA) standard. They efficiently absorb 99.9% of particles as small as 0.3 microns, including odors, fumes, smoke, and pet odors. 3.[3-Stage Filtration System]Our filter utilizes a comprehensive 3-stage filtration system. The effective pre-filter traps large airborne particles, while the true H13 grade HEPA filter absorbs fine particles. The activated carbon filter absorbs a variety of odors and smoke. 4.[Package]Included are 2 high-quality replacement filters ing great value for your money. 5.[Wildfire smoke] have been proven to clean air contaminated with wildfire smoke.