How to Tell If Your HVAC MERV Filter Is Still Protecting You From Viruses: Warning Signs of Filter Bypass, Wrong Sizing, and Reduced Airflow Inspectors Catch
Most MERV 13 filters we pull from Florida homes are doing less than the rating on the box promises. The reason rarely comes back to the filter itself, but to the installation around it. Three patterns drive most of the bypassed protection we see: perimeter gaps, slot mismatches, and blowers struggling against loading levels the … Read more