I have a Navigator UV810 DuoClean. I can't wash the filters due to an allergy to dust and when I do I have a terrible reaction so I bought them as a cheaper alternative than the Shark filters. I left the filters running longer than they should, probably around 6 months. I bought this brand for another Shark model I have, they ended up working well so I wanted this brand again. They work as they should, seem to fit and work just like the original. The suction performance has been greatly improved as others are in poor condition. Every time I swept the old ones, there was a little smell of our dogs in the air. I've noticed that the air doesn't smell on these new ones, so I'll be changing them more often. The price is great, way cheaper than what I spent at Shark. For the price I don't need to wash them. With my allergies, it's best to just throw them away. I am very happy with them and will buy this brand again if I need more!
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