This one-year ultimate replacement filter set includes washable pre-filter, true HEPA filter, washable Advanced Odor Control Granular carbon filter and anti-microbial coating. It is the standard replacement filter for the Winix PlasmaWave 9300 Ultimate Pet Air Purifier and also fits Winix 9000S and Winix FresHome P150 HEPA Air Purifier.
This filter lasts for one year and should be replaced annually, in addition to washing the pre-filter every 3 months. The carbon filter can also be washed as needed.