What Happens When Your 18x25x2 Air Filter Doesn’t Fit Snugly?

Infographic illustrating the risks of a loose 18x25x2 filter: air bypass, system strain, and poor indoor air quality.

That gap around your 18x25x2 air filter is doing more damage than you’d think. At FlowAireAC.com, we’ve inspected thousands of HVAC systems and found that loose-fitting filters are among the most overlooked causes of poor air quality and rising energy bills. In our experience, even a quarter-inch gap can let up to 30% of airflow … Read more