Compatible Model: PUR131 filter replace filter suitable for -PUR131, -PUR131S, -PUR131-RF.Excellent Filtering Effect: Pre filter protect HEPA and filter large particles such as hair, pet fur. Premium quality for -PUR131 replacement filters as small as 0.3 microns, filtering performance is better than other normal filter. PUR131 filter remove dust, pollen, pet dander. Activated Carbon filter captures household odors and smells, such as smoke, cooking fume and more odors. Excellent filtering 99. 97% keep your air clean and smell fresh.Unbeatable Value: This value pack includes 2 HEPA Filters and 2 Activated Carbon Filters. Provide enough replace filter for you to change PUR131-RF filter on time. For best performance of filtering, we recommend replace your HEPA filters every 5-6 months, and activated carbon filters every 5-6 months. After get this value package you needn't to buy another replacement filter within a year.Easy to Install: Free your hands from the complicated installed steps. Our replacement filter can perfectly fit for -pur131 filter, you can easily to install them without extra tools needed. Save your time.Warm Tips: Replace your Filter on Time to Keep your Air Clean. Replace your HEPA Filter Every 4-6 months , Activated Carbon Filter Every 4-6 months. The Time of Replace Filter, is According to your Requirement.Colour:As shownMaterial:plasticPackage Contents:2* filter2* filter cottonOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.