Brand: Yosper Product Dimensions: 25.5 length x 24.8 width x 5.6 thickness cm Compatible Devices: Humidifying Air Purifier EU Spare Parts Availability: 10 years Quantity: 5 Manufacturer: Yosper [Model Number] Dust Collection Filter FZ-D50HF (FZ-M501HF) *1, Deodorizing Filter FZ-D50DF (FZ-F50DF / FZ-M501DF) *1, FZ-Y80MF *1, FZ-AG01K1 Ag+ Ion Cartridge *1, Disposable Pre-filter FZ-PF51F1 *6. [HEPA Dust Collection Filter] Captures PM2.5, pollen, allergens (dust mite feces/dead bodies), mold spores, dust/dirt, tobacco smoke (particles), pet hair, etc. It may discolor (gray, ocher, etc.) due to collecting fine dust and dirt in the room, but this is not abnormal. [Deodorizing Filter] In addition to powerful odor decomposition and deodorization, the deodorizing filter reduces harmful components contained in exhaust gases that enter living rooms, etc. It can eliminate cooking odors, pet odors, the smell of damp laundry, body odor, and aging odors. [Humidifying Filter] Adopting the peak valley folding technology, it increases the amount of water absorption while increasing the contact surface with the air, allowing water to spread into the air. The antibacterial material filters the air during humidification, killing bacteria and viruses in the water, making humidification purer. [Replacement Guide] Dust collection filter and deodorizing filter: 1-6 years. Disposable pre-filter: about 1 month. Humidifying filter replacement guide: about 10 years. The replacement time varies depending on usage time and installation location. If used when there are strong odors such as tobacco or yakiniku (grilled meat), odors may emanate from the filter within a few weeks to a few months, requiring filter replacement. When using in such situations, it is recommended to use it in conjunction with room ventilation.