Made of high-quality material for increased durability. HEPA filter constructed from high-strength, environmentally friendly materials that can capture particles as small as 0.3 micrometers. Helps maintain vacuum performance while reducing the release of dust, pollen, and other allergens into the air. Replacement filter: A dirty filter can significantly reduce suction power. For optimal performance, replace the filter every 3 to 6 months depending on usage and dirt levels. Ideal replacement for damaged, worn, or missing filters. Helps keep your vacuum cleaner running efficiently and contributes to cleaner air. Color: Black & White Material: ABS Package Contents: 4 x Rear Filters Note: Other items not included. Note: Lighting and monitor settings may cause slight color variations. Measurement may vary by +/- 1-3 cm.