2 FilterBuy Shark HEPA Compatible Filters for Shark Navigator Lift-Away NV350, NV351, NV352, NV355, NV356, NV356E, NV357. Designed by FilterBuy to Replace Shark Part # XHF350. 2 HEPA Filters for Shark Navigator Lift-Away NV350, NV351, NV352, NV355, NV356, NV356E, & NV357. Manufactured by FilterBuy. Replaces Shark Navigator Life-Away Part # XHF350. HEPA filtration trapping 99.97% of airborne particles. Premium Allergen Filter FilterBuy: Breathe Better!