Better Air Filter Finder

See the actual points

Pressure drop,
with the context.

Choose a photographed product to inspect its printed initial resistance. Different sizes and assemblies are not interchangeable fit options.

Usable photographed initial-resistance points
Airflow (CFM)Pressure drop (in. w.c.)Source / observation

Open product, source label and document tables →

Why no smooth curve?

These labels give individual airflow and pressure pairs. A line or smooth curve can suggest measurements we do not have. No interpolation method has been accepted for this release, so the explorer shows only printed points.

Our default reference is 1,000 CFM. Where that exact point is absent, we say so and keep the other evidence visible. A 1,025-CFM measurement is not silently relabeled 1,000 CFM.

Document media-only and cabinet-assembly tables are available separately, including models outside the photographed catalog. Disputed values are held out. Filter pressure drop is different from the total external static pressure of a complete HVAC system.

Compare the shared Filtrete published airflow points →