6 pcs Air Humidifier Replacement Filters for Hu4803, Hu4811, Hu4813, Hu4801, Hu4802 Models New, high-quality materials, well-made, durable, and precisely designed to match original equipment specifications Clean replacement filters help maintain optimal humidifier performance; accessories are easily removed and replaced as part of routine maintenance; helps reduce the circulation of dust, pollen, and other airborne particles For best results, replace filters every 23 months depending on usage frequency HEPA-grade filtration effectively captures up to 99.97% of airborne particles, helping to reduce household dust, pet dander, and allergens Color: As shown in picture Material: Filter cotton Package Contents: 6 x Replacement humidifier filters Note: Light reflection and different display settings may cause slight color variations between image and actual item; measurement error allowed within +/- 13 cm Only the listed items included; other accessories not included