FCFMY 1 Pack HE400 Replacement Filter Compatible with Shark HE400 HE401 HE402 HE405 4 Fan Model Air Cleaner Purifier,3-in-1 Filter of Pre-Filter,Carbon and HEPA Filter - HE4FKPET

• 【Compatible Model】Perfectly compatible with Shark HE400 HE401 HE402 HE405 advanced odor lock 4-fan models air cleaner purifier. Part #HE4FKPET 【3-in-1 Filter System】 Premium H13 grade true HEPA filter + activated carbon filter + pre-filter as a union. Keep your indoor air fresh. 【H13 HEPA Technology】H13 true HEPA filter helps to capture 99.97% of airbone particles as small as 0.3 micron. 【Useful Tips】When the filter needs to be changed, the FILTER LIFE button on the top control panel will flash.After installing a new filter, press and hold the FILTER LIFE button for 3 seconds to reset the filter timing system. The unit will beep when filter timing is properly reset. 【Replacement Frequency】It is recommended to replace the filter every 6-12 month depending on using environment