Bests & Worsts Reviews from Amazon

These carbon air filters were used to make an "I'm-too-cheap-to-buy-the-real-thing" air filter for our home. I took a big, bargain-priced box fan from our local hardware store, cut these filters to size, and twist-tied them onto the back of the fan. The result? Well, first, I learned that I should have shook them a little first, as bits of carbon flew out when we turned the fan on. My bad. After that, though, our new Cheap-O Air Purifier (patent pending) was pulling more air through it than any proper air purifier we've ever owned. And I didn't have to mortgage my children! Now our home has noticeably less dust & pet hair flying around, we all suffer less from our allergies, and the air in the house just smells cleaner. It's great. Sure, it might not be as stylish as those other solutions... but you know what? It's a dirt catcher. I don't need it to impress people, I just need it to pull dog hair, dust, and whatever other stuff out of the air in my house. That's it. I'm not willing to pay hundreds of dollars for that (anymore); this works better than any expensive air filtration device we've owned. P.S. - We had enough left over to use above our range, inside the vacuum, and over a heater grate. These filters are very useful, and I'm glad we bought them!