Usage Tips:Fangrui Product Details [compatibility]the C545 Hepa Filter S Fully Compatible With For Winix C545 Air Purifier. Compared To Winix Filter S 1712-0096-00. [true Hepa Filter]premium True Hepa Filter Captures 99. Of Airborne Particles Down To 0.3 Micrometres In Size, Composed Of High Quality Filter, Durable, Safe, And Reliable. [easy To Use]easy To And , No Tools Required. Simply Remove And From Your Air Purifier Unit When Needed. It Is Recommended To Hepa Filter Every 6~8 Months For Optimal Performance. Colour:white Material:plastic Package Contents: 3 * Filter Only The Above Package Content, Other Products Are Not Included. Note: Light Shooting 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.