Compatibility and fit - The Premium LV-PUR131 Air Purifier Replacement Filter is fully compatible with LEVOIT LV-PUR131 and LV-PUR131S Smart Air Purifiers. Please confirm your model before purchase. - Filter dimensions: 13.6 x 1.8 x 11.6 inches. Filtration performance - LV-PUR131-RF true HEPA filters with a fine pre-filter capture 99.97% of particles as small as 0.3 microns. - Effectively removes fine dust, pollen, pet dander, lint, hair, fabric fibers, and similar airborne particles. Activated carbon filtration - LV-PUR131S Activated Carbon Filter helps remove common odors from pets, smoking, and cooking. - Creates a fresher air environment and helps extend the life of the HEPA filter. Stage filtration system - The filter set combines a fine pre-filter, a True Hepa filter, and an activated carbon filter. - Together they capture large airborne particles and absorb odors to improve overall air quality in living spaces. Use scenarios - Home with pets or allergy symptoms: reduces dust, dander, and pollen, helping achieve cleaner indoor air. - Kitchen or smoking areas: mitigates cooking and smoke odors for a fresher living space. - Bedrooms or living rooms: maintains cleaner, more comfortable air while supporting cleaner air for sensitive occupants.