Review on Nordic Pure 16X25X1 Pleated Furnace Air Filters by Russ Charmin

These are great filters, much cheaper than 3M. You have worked very well for me. However, let me take a moment to address a few criticisms. Firstly, people complain that they come without any labeling, hence claiming that they are fake. The fact is that there are no markings on all Nordic Pure filter housings. They use the same frame for all of their products in that size, so they don't label them. Second: size. It's called permissions. All filters are slightly smaller than their nominal size to ensure they meet the tolerances set by duct installers. They are perhaps a fraction of an inch smaller than the 3M equivalents. It won't matter to most. The fact is that they show the actual dimensions under the details. Third, reducing allergenicity. If you buy an oven filter to reduce allergens, you are buying the wrong product. While this is a nice side benefit, furnace filters were designed with one goal in mind: keeping dirt out of the heat exchanger. That's all. If you are worried about allergies, buy a separate HEPA filter. Otherwise, the size of the trapped particles is what matters, not placebo-based subjective claims, such as someone appears to be more allergic to that filter.