Fangrui Product Details [fully Compatible With Air Purifier Y-600]this Premium Y-600 Hepa Filter Is Specifically Designed To Fit Core 600s-p Air Purifier. Compared To Model: Y-600. Keep Your Core 600s Air Purifier At Its Working Efficiency And Capacity, Breathing Fresher And Cleaner Air All The Time. [3- Fil-ter System]our Y-600 Air Filter Is Made Of Upgrade H13 True Hepa High Filtration Efficiency Material, Which Effectively Resists At Least 99. Of Airborne Particles As Small As 0.3 Microns In The Air. This New Material Design Helps To Maximize The Filters Life. [super Craft] The Y-600 Filter Is Made Of Premium Non-woven Fabric And Activated Carbon, Both Adopting Advanced Lower Energy Consumption And Lower Density Structure Technology By The Manufacturer, With Higher Efficiency And Less Pressure To Maximum Performance. [cost-effective Package]package Includes 1 Pack Of Core Y-600 Filter, Which Help Save Money . The Core Y-600 Filter Should Be Replaced Every 6-12 Months De