【𝗣𝗘𝗥𝗙𝗘𝗖𝗧 𝐂𝐎𝐌𝐏𝐀𝐓𝐈𝐁𝐋𝐄 𝐖𝐈𝐓𝐇 𝐇𝐄𝟒𝟎𝟎 𝐒𝐄𝐑𝐈𝐄𝐒】Ecleanfy he401 filter works fully compatible with Shark Air Purifi-er 4-Fan Models (HE400, HE401, HE401C, HE401NP, HE402, HE402AMZ, HE402C, HE405, UA415) . Replaces Part No. HE4FKBAS, HE4FKPET, HE4FKPETMB, HE4FKPRO 100356-chn-1 filters. 【𝟯-𝗜𝗡-𝟭 𝗙𝗜𝗟𝗧𝗥𝗔𝗧𝗜𝗢𝗡】Ecleanfy Replacement for shark 4 fan air purifi-er filter adopts 3-in-1 Filtration System ( ①Nylon Preliminary Filter ②H13 Grade Filter ③Activated Carbon Filter ) to filter 99.97% of airborne particles down to 0.3 microns in size to improve air quality in your living space and promote better health. 【𝗦𝗨𝗣𝗘𝗥 𝗖𝗥𝗔𝗙𝗧&𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗬】Ecleanfy Replacement for shark he401 filter is made of high-quality non-woven fabric, H13 filter and activated carbon, and adopt advanced lower energy consumption and lower density structure technology, with lower wind resistance, higher efficiency and less pressure to ensure maximum filtration. The upgraded Replacement for shark he402 replacement filter ensures energy saving and a longer service life. 【𝗛𝗜𝗚𝗛 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘】Enjoy fresh air all year round with Ecleanfy Replacement for shark he400 filter replacement to ease uncomfortable symptoms caused by problematic air. H13 Filter works alongside the Pre-Filter and High-Efficiency Activated Carbon Filter to work for pet dander, and hair, and solve the problem of unpleasant odors and gases. 【𝗩𝗔𝗟𝗨𝗔𝗕𝗟𝗘 𝗣𝗔𝗖𝗞𝗔𝗚𝗘𝗦】Package includes 2 x HE400 Filter. Size: 15 x 17 x 1.5 inches. Our Replacement for shark 4 fan air purifi-er filter contains all the required parts to complete the standard installation of your HE400 air purifi-er. We recommend you to replace the filter every 6-12 months for optimal performance (depending upon your usage). Easy installation. HE401 Filter for Shark Air Purifi-er 4, Compatible with Shark HE401 HE402 HE405 HE400, 3-in-1 Filtration for Shark HE400 with Air Purifi-er 4, #HE4FKPET, 2 Pack