New, high-quality materials, well-made, durable, and compatible with the equipment. Easy replacement filter: The filter is easy to replace and dispose of without any tools, allowing you to replace your old filter in minutes. The activated carbon filter effectively captures harmful gases. It can electrostatically adsorb harmful gases and chemicals such as formaldehyde, benzene, and volatile organic compounds. We recommend replacing the filter every 3–6 months. Please remove the plastic packaging from the filter before use. Model Number: For Hpa100 Air Purifier Type: Air Purifier Parts Color: Black Material: Activated carbon Size: Charcoal cotton size: 27.5 x 19 x 0.5 cm Package Contents: 10 x Charcoal cotton Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement error is permitted within +/- 1–3 cm.