Over 95 percent interception efficiency: actively traps fine dust to reduce buildup inside fans and maintain consistent air purity. Flexible installation for varied sizes: adaptable structure fits standing and desktop fans of different sizes, suitable for both residential and professional environments. Durable, breathable dust protection: threelayer composite fiber balances airflow with dust capture; remains flexible and durable without deformation or shedding fibers for lasting performance. Easy installation and maintenance: adhesive tape mounting with a simple threestep process; easy removal and quick filter changes, saving time while keeping the fan guard clean and functional. Use scenario: Ideal for home offices and desktop workstations where clean air and protected electronics are important, keeping desk fans of accumulated dust. Use scenario: Suitable for living rooms, studios, and small offices with standing fans, reducing dust reach and improving air quality in common living spaces. Use scenario: Beneficial in professional settings such as workshops or clinics where reliable dust protection and easy maintenance are valued, ensuring fans operate efficiently with minimal downtime.