Air Conditioning Filter for indoor units Key benefit: reduces dust buildup that can restrict airflow and lower system efficiency, helping your air conditioner run more reliably. Precise fit for hanging indoor units: designed to be compatible with indoor unit air conditioner models and to fit hanging units tightly for effective dust control. Longlasting protection: a durable plastic dustproof net that helps keep internal components cleaner and supports consistent cooling performance over time. Four styles to match configurations: available in four styles to suit various indoor unit configurations, providing an effective solution for protecting sensitive cooling parts from airborne particles and improving air quality. Size and compatibility guidance: size varies by model, so please measure your indoor unit's mesh cover dimensions carefully before ordering. refer to the product image for reference to guarantee proper fit and function. Use scenarios Home living room with a wallmounted or ceilinghung indoor unit in dusty environments: install to prevent dust from entering the airflow path and maintain efficient cooling. Office or workspace with frequent dust exposure: use to protect internal components and sustain stable cooling performance without frequent maintenance. Replacement or upgrade for aging filters: worn or inferior filters to extend the life of the air conditioner and preserve air quality.