If the label is missing, measure the length, width, and thickness of the filter slot. Round up to the nearest whole inch to find the nominal size.
The Minimum Efficiency Reporting Value (MERV) scale (1–16) measures how well a filter captures particles. What is a MERV rating? | US EPA central air conditioning filters buy
Size is the most critical factor; an ill-fitting filter allows unfiltered air to bypass the system. If the label is missing, measure the length,
When buying central air conditioning filters, you must balance air filtration quality with your system's airflow requirements to avoid equipment damage. 1. Find Your Filter Size If the label is missing