Shark Navigator Lift-Away NV350, NV351, NV352, NV355, NV356, NV356E, NV357 HEPA Filter & Foam Filter Kit Fits the following Shark Navigator Lift-Away Models: NV350, NV351, NV352, NV355, NV356, NV356E, NV357 1 Washable Foam and Felt Pre-Filter Replacement Kit & 1 Hepa Filter Absolutely Essential for Allergy Sufferers! Traps 99.97 of airborne particles 100% brand new and high quality. HEPA Filter & Foam Filter Kit.