G3 Replacement Filter Compatible with AMEIFU G3 Sferf-30 (FXAP2W) , VEWIOR ClearAir-A3 and Tailulu Machine HQZZ-260 3-IN-1 HEPA , 2 Pack Compatible with AMEIFU G3 Sferf-30 (FXAP2W) Air Purifier , VEWIOR A3 Air Purifier and Tailulu HQZZ-260 Air Purifier Package Includes ? 2 Pack x G3 Filter Replacement For AMEIFU Tips: For optimal performance, we recommended to replace the G3 Filter Replacement for every 3 - 8 months.