1. Enhanced cleaning efficiency: The filter is made of a variety of materials. Installing the filter ensures optimal cleaning performance while reducing dust particles in the air, removing odors from the air, creating a healthier breathing environment, making the machine run better for a long time, and extending the life of the machine. 2. Advanced filtration technology: The filter captures 99.97% of all particles 0.3 microns, including dust, dirt, hair and other fine particles, ensuring a cleaner and healthier environment in your home. 3. materials: This accessory is made of materials and can be washed and reused. This design ensures long-lasting performance and reliability when facing various cleaning challenges. 4. Easy and fast installation: This accessory is designed for S1 car vacuum cleaner. It is simple to install and can be installed quickly without any tools. It is an ideal solution to restore your vacuum cleaner to optimal working condition. 5. Cleaning recommendations: