1.Compatibility: AP-PET35 AP-T30 filter compatible with HoMedics air purifier filter replacement for models AP-PET35 AP-PET35-WT AP-T30 AP-T30WT. Attention, this HoMedics replacement filter is not applicable to the models AP-T45 AP-T40 AP-T20 AP-T100 2.True HEPA filter: Replacement filter for HoMedics models AP-PET35FL have 360-degree filtration, H13 true HEPA filter captures up to 99.97% of airborne particles as small as 0.3 microns. can efficiently absorb airborne dust; pollen; pet dander; smoke 3.5 Layer 3-in-1 filter: Activated carbon filter can effectively adsorb unwanted odors; smoking; cooking smells; pet odors.pre-filter can capture large particles in the air; such as hair; pet hair; dander, our filters will bring you a purer air environment 4.Cost-effective: Our AP-PET35 AP-T30 replacement filter do the same job as the original filters on the HoMedics TotalClean 5-in-1 Tower Air Purifier and our price saves you some money Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store