Easy installation: External mounting system requires no vent disassembly. Practical design allows for easy filter replacement, reducing the burden of daily maintenance. material: Combination of reinforced cloth material and wearresistant vent covers. Built to resist daily wear and tear to ensure the lasting performance of your A/C filter with durability. Improves air quality: The vent filter effectively blocks harmful substances and particulates, reducing indoor dust. Promotes healthy breathing space with air purification function to create a clean air environment. Flexible applications: Can be easily installed on air conditioning covers in collected houses, stores, warehouses, hospitals, and general homes. Support environmental air quality control. Use scenarios Home environments where you want to reduce dust and improve indoor air quality with easy maintenance. Stores and warehouses seeking to protect customers and staff by improving air quality around air conditioning covers. Hospitals and general facilities that require reliable air quality control and durable, longlasting filtration.