Only filter that I have purchased that does it's job. I have purchased filters in the past that after a few weeks started sucking air from the sides and making noise and I had to toss them. This one stands strong and does it's job. I have noticed a lot less dust on my furniture. I feel like I'm getting my monies worth. Finally a company that makes a great product !   Thanks Filtrete [This review was collected as part of a promotion.]