Perfect Fit：Compatible with Shark Air Purifier 6 Fan Models (HE601, HE602), Shark Air Purifier 6 Replacement Filter. Part Number: HE6FKPET, HE6FKBAS, HE6FKPRO Warm Tip：After installing the new filter, please press and hold the Filter Life button on the top control panel for 3 seconds to reset the timer. The unit will beep when the timer is activated Highly--Filtration System：Our premium shark he601 air purifier filter replacement is designed in H13 True , high-efficiency activated carbon and fine pre-filter, based on filtration standards of 99.97% filtration, down to 0.3 microns, protects against household odors from cooking, cleaning products, and more Valuable Package：The valuable pack includes 2 Filter with 100% New high-efficiency he601 air purifier filter replacement. Our he601 replacement filter can be installed easily without any tools Replacement cycle：To ensure your HE601/HE602 Air Purifier running at high performance, recommend replacing the he601 air purifier filter replacement every 6-12 months, also depending on your frequency of use Customer Service： If you have any questions about the HE601 filter, please feel free to contact us, we are committed to offering high-quality products and providing efficient customer service HE601 Replacement Filter Compatible with Shark Air Purifier 6-Fan Models HE601& HE602, H13 True Premium Filter, Compare to Part # HE6FKPET, HE6FKBAS, HE6FKPRO, 2 Pack