Enhanced dust protection for indoor units: Prevents dust buildup on hanging indoor air conditioners, helping maintain airflow and improving overall system performance while reducing maintenance needs. Tool quick installation: Easy to attach to most indoor AC units without tools, providing immediate protection against airborne particles. Durable plastic construction: Made from sturdy plastic materials that withstand continuous use, delivering reliable performance through seasonal changes and maintaining integrity. Four design options: Available in four distinct designs to fit various air conditioner models and vent configurations, ensuring proper coverage and compatibility with preferences. Use scenarios: In homes with dust levels or ongoing renovations, to prevent dust from accumulating on the indoor unit and surrounding components. In offices or classrooms with ceilingmounted indoor units, to protect against dust while preserving airflow and reducing cleaning frequency. During seasonal changes or in climates with variable air quality, to maintain performance and prolong the lifespan of the indoor unit.