Efficiency Filtration: This aircon wall unit filter uses plastic and cotton materials to effectively capture dust and impurities, helping to maintain cleaner indoor air quality while extending its service life for enhanced comfort. Compatibility: Specifically designed for Midea air conditioning systems, this replacement filter provides exact dimensional matching with sizes including 31*8x27*5cm, 34*5x27*5cm, and 30*2x28cm to insure performance. Easy Installation Process: Featuring a userfriendly hanging design that slides effortlessly into designated slots, this air conditioner dust filter requires no tools or complicated setup procedures for quick maintenance. Health Protection Benefits: Blocks airborne particles and contaminants from circulating through your indoor environment, promoting healthier breathing conditions for family members with respiratory sensitivities. Use scenarios: In homes near busy streets or dusty environments, install this filter to help keep indoor air cleaner and maintain system efficiency. For households with allergy or asthma sufferers, use this filter to reduce irritants circulating through the AC system. In small offices or common areas using Midea air conditioning units, the filter easily during routine maintenance to sustain air quality and comfort.