This combination of 1 filter and 2 foam filters is perfect for my Shark Liftaway N352. They arrived in time for spring cleaning at the end of the year. Changing the filter and foam filter is very easy, it only takes a few seconds. With a brand new filter and foam, I can say that my Liftaway sucks up every dirt and particle from my carpet like a new vacuum. I usually wash out the foam filter once a month and apply a new one while it dries in the sun. Next month I put in the ones I flushed the previous month and take out the existing one to flush. A month later I throw away the one I've already reused twice and pop in another one for a second use. Then I order another filter and 2 filter sponges. I think this is how I get the most out of the liftaway with a clean filter and foam for 4 months for $11. I have 4 cats in a 1800 square foot house where most of the floor is covered with carpets and area rugs. The N352 isn't a new model, but it will still do the job as long as it's equipped with a clean filter and foam.
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