filtration technology: constructed from a unique blend of plastic and cotton fibers, this air conditioner filter traps dust effectively and helps maintain a pristine indoor atmosphere while extending its usable life. Dust blocking mechanism: reduces dust infiltration into the AC unit, supporting cooler airflow and enhanced comfort in any room of your home. Enhanced health benefits: actively blocks harmful airborne particles to improve indoor air quality for a healthier environment for you and your family. Use scenarios: In dusty or traffic living spaces such as living rooms or bedrooms, to keep air cleaner and reduce debris buildup in the unit. During allergy seasons or in households with pets, to lower irritants circulating through the HVAC system. In home offices or study areas where consistent, comfortable airflow and cleaner air contribute to a more productive environment. Key attributes: Material: plastic and cotton fibers. Function: filtration, dust reduction, and air quality improvement. Performance: traps dust, reduces dust infiltration into the unit, and blocks harmful airborne particles for healthier indoor air.