Compatible models: This replacement filter set is designed for seamless fit with AC2889, AC2882, AC2880, AC2885, AC2886, AC2887, AC2888, AC2892, 2000i series, AC382910 and AC382110 air purifiers and humidifiers, ensuring performance and air filtration efficiency. efficiency filtration: Featuring a 99.7% filtration efficiency, the Active Carbon Filter effectively captures dust and airborne particles, helping deliver cleaner and fresher indoor air while maintaining improved airflow. Durable construction materials: Made from a robust combination of PC, nonwovens, and sponge, the FY2420 filter is built for reliable, longlasting use, resisting wear to provide consistent air cleaning performance over its service life. Easy installation and replacement: Designed for user convenience, the filter set allows quick and straightforward installation or replacement, enabling you to maintain your air purifier or humidifier with minimal effort and no special tools required. Practical use scenarios: In homes during allergy or pollen season to reduce irritants and improve comfort while sleeping or relaxing. For households with pets or dusty environments to maintain cleaner indoor air and reduce odors. In small offices or shared spaces to sustain better air quality and reliable airflow for everyday workflows.