This filter *might* last a little longer than a standard paper filter, but not by much. I bought one of these a little over a year ago and subjected it to what I consider moderate violence and it failed in almost every way. As you can see from the photos, the folds are thin and do not hold their shape, fine dust penetrates them, they have detached from the base and edge, creating large gaps and completely losing their effectiveness. Before that I had a proper HEPA filter that probably lasted five years under the same stress and when I threw it away it was probably still in better shape than this one. Stay away from this junk and buy a HEPA filter instead.
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