Does a 1-Inch Media Upgrade to the MERV 13 Standard Create a Valid Healthy Home Air Filter?
A customer called us last month about a 1-inch MERV 13 filter he’d installed three weeks earlier. His air conditioner was cycling every ten minutes, and the bedroom at the end of the hall felt stuffy. The filter was the correct size. His system was installed in 2003. The math didn’t work. Here’s the good … Read more