HE401 Replacement Filter Compatible with Shark AirPurifier 4-Fan Model

Compatible Models: FFAC HE401 filter replacement for Shark 4-Fan Model air purifier compatible with Shark HE401 HE402 HE405 air purifier. Compared to Part HE4FKPETP filter | 3 Layer Filtration: Our HE401 filter has a 3-layer filtering function. There are fine pre-filter, H13 true HEPA filter and activated carbon filter. The activated carbon filter can absorb unpleasant odors | High Efficiency: The HE401 HEPA filter can capture 99.7% of suspended solids as small as 0.3 microns | High Quality: The filter is made of non-woven fabric and activated carbon, and adopts advanced low-energy consumption and low-density structural technology to ensure the optimal balance between air purification and filtration efficiency | Replacement Frequency: In order to improve the performance of your air purifier 4, please replace the HE401 HEPA Filter every 4-8 months