Fangrui Product Details [ Compatibility]perfectly Compatible With Your Hsp001 Smart Air Purifier. They Work Just The Same As Part Numbers Filters. [value Package]there Are 2 Types Of Filters Totally Filters In The Package: (filter A 2 In 1) With One Side: Cold Filter, And The Other Side: Activated Carbon Filter. (filter B 2 In 1) With One Side: Blue Color Pre-filter, And The Other Side: H13 Grade Ture Hepa Filter. [h13 True Hepa Filter]in Order To Do The For Your Air Purifier,we Only Provide H13 Grade Hepa Filter Which Is To An Efficiency Of Removing Of Airborne Particles As Small As 0.3 Micrometres .it Is H11 Filter [4 Of Filtration] The 4 Sides Filters Make Really High Performance To Help To Remove Both Large And Fine Particles As Small As 0.3 Micrometres, Absorb More Odors And Smoke. And Longer Time With Your Machine Colour:photo Color Material:composite Material Package Contents: 2sets X Air Purifier Filter Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And