Contractors may need more information in order to evaluate how well a lower-MERV filter removes smaller particles. (Photo courtesey of Kimberly-Clark Corp.) November 21, 2011 Contractors may need more ...
Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...
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