HODSEUKIN AP-H400 Air Filter Replacement Compatible with HoMedics AP-H400 2-in-1 Cool Mist Humidifier and Air Purifier,Filtration Activated carbon, 2-Pack

["Compatible for HoMedics AP-H400 Our Happi Air Purifier Filter Replacement, including Pre-Filter","Dual filtration design with activated coconut carbon layer.High-Efficiency filter Smoke, multiple Air particles filters","High-Efficiency Activated Carbon, filter All sorts of smells and smoke","Please replace regularly to keep your machine fresh， Recommended to change filter once every 6 months, Also the filter's usage time will depend on the environment air quality around you.","Energy saving air filters save energy due to a low-density design and requiring less pressure to push air through the filters"]