Review on High-Quality Green Label Brand Replacement HEPA Filter XHF350 + 2 Pack Foam and Felt Filter Kit XFF350 - Compatible with Shark Navigator Lift-Away NV350, NV351, NV352, NV355, and More by April Taylor

I have two Shark vacuums (because I'm too lazy to carry one up and down stairs). Although the filters are washable - and I wash them monthly - they wear out over time. I don't wash my Hepa filters, I just change them every 9 months or a year depending on usage. These replacement parts work great and are almost the same as the ones that come with the vacuum. This is my fourth set. I had no problems and can highly recommend them.