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

Compatible ModelPerfectly 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 TechnologyH13 true HEPA filter helps to capture 99.97% of airbone particles as small as 0.3 micron. | Useful TipsWhen 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 FrequencyIt is recommended to replace the filter every 6-12 month depending on using environment