[Cleaning and Replacement] The pre-filter can be removed for separate cleaning. Use a brush to gently wipe off dust. To ensure optimal performance of the Vital 100 filter, it is recommended to replace it every 3 to 5 months. HEPA H13 FILTRATION: Effectively captures 99.9% of airborne particles, including allergens, odors, VOCs, smoke, pollen, pet dander, dust, smog, and other contaminants as small as 0.1 micrometers. Offers finer particle capture than HEPA H11 filters, which capture particles down to 0.3 micrometers. [3-Stage Filtration] The Vital 100 replacement filter features a 3-stage filtration system: (1) Washable and removable pre-filter, (2) High-efficiency activated carbon filter, (3) True H13 HEPA filter. This multi-layer system helps remove particles of various sizes and household odors more effectively. Compatible with Lev.oit Vital 100 air purifier. Tested for precise fit and performance. Part Number: Vital-100-RF Color: Black + White Material: Plastic Package Contents: 2 x HEPA Filter (filters only, other items not included) Note: Lighting and display settings may cause slight variations in color between the product and the image. Measurement may vary by +/- 1-3 cm.