What MERV Rating Is Best for 16x25x4 Air Filters and How Does It Affect Performance
Air Filter Ratings Explained for Better HVAC Performance When homeowners ask me about 16x25x4 air filters, the MERV rating question comes up almost every time. I get it. The number feels like the most obvious thing to grab onto when you’re standing in the filter aisle trying to make a smart choice. But after writing … Read more