Dehumidifier pint ratings explained

1. Cooler air, a smaller rating

A capacity is the amount of water removed per day under the rating method. Cooler air contains less moisture, so the same appliance can earn a lower capacity figure. A new label is not proof that a comparable machine got weaker.

Whole-home units use a 73°F test. Keep those figures separate from portables.

2. From a chart to a shopping class

The historical AHAM chart is a starting point. Our shared sizing tool uses conservative class bins: old 30 → current 20, 50 → 35, and 70 → 50, followed by one class up for a basement or crawl space.

These are editorial shopping bins. ENERGY STAR’s rough model correlations differ: old 50 ≈ new 30, old 60 ≈ new 35, old 70 ≈ new 40–45. No table converts every model exactly.

3. “Box”, “label” and “maker’s claim” are different

The box is marketing copy printed on the package or listing. A historical label is the capacity class under the older rating era. A maker’s claim is a manual or manufacturer specification that a public database has not confirmed.

Waykar CTH120A: certified capacity source · checked Oct 11, 2026. Check the claim’s stated conditions in the source library; it is not a portable 65°F capacity.

4. Choose drainage after sizing

A correct capacity will not solve an awkward hose route. A gravity drain needs a downward run. A pump needs enough rated lift and an installation that matches the manual.