Furnace Airflow

Connecting to sensor…
by FESCUE
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CHANGE
% clogged
Filter life remaining
%
Connecting to sensor…

Filter life since the last change

100% is a clean filter on your own system; 0% is the change point. The dashed line is where it's heading.

Live ΔP and temperature are real sensor measurements. Filter life, airflow (CFM), and loading are figures derived from the measured ΔP. K&H Sensor Solutions.
FESCUE Software & Design, Cut Close · EST. 2026