Although the contents or substance of these filters look and feel different, I have found them to be very effective at trapping airborne contaminants/particulates, perhaps even better than leading filters. competitor/manufacturer. Nordic Pure offers a variety of filter sizes to suit most needs and most stove systems. They even sell and make screen filters which I also bought. Not only do I shop, choose, and buy for my home system, I also buy them for my mother's apartment and three stoves for my church. I would recommend the product to any consumer.
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