Perfect Compatible with Shark Air Purifi-er 6 Compatible with Shark Air Purifi-er 6 Fan Models (HE601, HE602). Part Number: #HE6FKPET. 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 filter for he601 air purifi-er replacement is designed in H13 True HEPA, high-efficiency activated carbon and fine pre-filter, based on HEPA 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 1*100% New high-efficiency he601 air purifi-er filter replacement.