Review on Get your Shark Navigator Lift-Away Vacuum Cleaners running smoothly with Green Label Brand 2 Pack Replacement Filter Kit XFF350 - Fits NV350, NV351, NV352, NV355, NV356E, NV356K, NV357, NV360, NV370, NV391, UV440, UV490CCO by Milagros Iser

I like my Shark Navigator Lift-Away and both of these filters pick up a lot of dust and it uses the XHF350 HEPA filter. I bought additional XFF350 filter kits. If you wash these filters, you must wait 24 hours before using them. Not keeping your filters clean will reduce the suction power of your vacuum cleaner. Keep your filters clean and your vacuum cleaner will suck.