efficiency filtration: This filter uses a plastic and cotton blend to trap dust and impurities effectively, delivering a cleaner indoor atmosphere and extending the filter's lifespan. Easy installation: Featuring a userfriendly hanging design, it can be slid into the designated slot quickly without tools or complicated setup. Dust proof design: The structure reduces dust and dirt entering the air conditioning unit, helping to maintain cooler airflow and improve overall room comfort. Health protection: By blocking harmful airborne particles, it promotes healthier indoor air quality and creates a safer environment for you and your family. Key attributes: Material is a plastic and cotton blend; fit is designed to slide into the designated slot; performance is efficiency filtration; durability supports extended filter life. Use scenarios: In homes with frequent dust or construction nearby, to keep the HVAC system cleaner and maintain comfortable cooling. For allergyprone households, to reduce airborne irritants and improve indoor air quality. In small offices or apartments with shared AC units, enabling quick replacement and minimal downtime.