Premium H13 grade true HEPA filter captures 99.97% of airborne particles down to 0.3 micrometers in size High-efficiency activated carbon filter absorbs household odors from pets, cooking, smoking, wildfire, and harmful VOCs HEPA filter made of high-strength, environmentally friendly materials that can block most dust particles down to 0.3 micrometer. The filter helps maintain the cleaning performance of the device while reducing the amount of dust and other particles released into the air Washable and reusable. Rinse with clean water and allow to air dry completely before reinstalling. For best results, replace the filter set every 1 to 3 months Easy to install and replace. Simply remove and insert the new filter without the need for tools Color: black and white Material: plastic and cotton Package Contents: 2 x Black Filter 2 x Black Filter Cotton 2 x Semi-Circular HEPA Filter 2 x Round HEPA Filter 4 x White Sponge Only the above package content is included; other products are not included Note: Lighting and display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm