Compatibility: Lv-H128 Replacement Filters Compatible With Levoit Air Purifier Lv-H128,Fit For Puurvsas Hm669A/Rovacs Rv60 | | 3-Stage Filtration System:H13 True Hepa Filter, Pre-Filter And Activated Carbon Filter; Lv-H128 Replacement Filters Give You A More Comfortable Living Space | | Dimensions: Lv-H128 Replacement Filter'S Size Is 6.7 X 4.7 X 1.1In. Please Check Your Vacuum To Make Sure You Are Purchg The Correct Parts | | Easy To Replace: The Lv-H128 Replacement Filter Is Easy To Be Replaced And Disposed Of Without Any Tool Required.Simply Remove The Filters From Plastic Packaging Before Placing Them Into Purifier | | It Is Recommended To Replace Filters Every 6 Months | |