HV-FY3 Humidifier Filter HV-FS3 for Humidifiers HV-Y30CX HV-Z30CX HV-A30 HV-B30 HV-C30 HV-D30E2 HV-D30 HV-E30E3 HV-S30CX Humidifier Filter Compatible Replacement, 2-Pack 【Compatible Models】Replacement Antibacterial Vaporizer Filter for Hybrid Humidifiers Compatible Models: HV-FY3 (※Successor to HV-FS3) Compatible Replacement Quantity: 2 【Applicable Models】HV-300CX, HV-310CX, HV-30E1, HV-30E4J, HV-30E5J, HV-30E6, HV-30E7, HV-30E8, HV-30E9, HV-A30, HV-B30, HV-C30, HV-D30, HV-D30E2, HV-E30, HV-E30E3, HV-F30, HV-F30E4, HV-G30, HV-G30E5, HV-H30, HV-H30E6, HV-J30, HV-J30E7, HV-L30, HV-L30E8, HV-P30, HV-P30E9, HV-R30, HV-S30CX, HV-S30E2, HV-T30CX, HV-T30E3, HV-U30CX, HV-W30CX, HV-Y30CX, HV-Z30CX. 【Humidification Principle】Employs peak-and-valley folding technology to increase water absorption while increasing the contact surface with air, allowing water to spread into the air. 【Functions】Antibacterial materials filter the air during humidification, killing bacteria and viruses in the water, making humidification purer. 【Replacement目安】5 seasons (Lifespan may be shortened depending on the hardness of tap water) If dirt is noticeable and the effectiveness seems to be reduced, it is recommended to replace it promptly.