Filter Made Of High Strength Healthy Material To Ensure Best Performance And A Healthy Lifestyle,We Suggest You'D Better Replaced It Every 2-3 Months Depending On How Often You Use It | | Replacement Vacuum Filter For Dyson Dc41 Dc41 Dc65 Dc66 Vacuum. | | Compatible With Dyson Dc41,Dc65,Dc66,Up13,Up20 Animal, Multi Floor And Ball Vacuum Replaces Part # 920769-01920640-01, 1 Hepa Post-Filter And 1 Pre-Filter Set | | If You Have Any Question, Please Feel Free To