Dehumidifier Sizing

10 pints for 500 sq ft above-grade room — Slightly–Moderately damp

Modeled from DOE/ENERGY STAR guidance; see methodology.

Recommendation: 10 pints/day (22‑pint class)

  • Space type: Above-grade Room
  • Size: 500 sq ft
  • Moisture condition: Slightly–Moderately damp

When to size up

If borderline or cooler than ~68°F, step up one class for margin.

Portable dehumidifiers are rated at 65°F under DOE 2019/2020. Cooler air reduces capacity; basements and crawls often benefit from moving up one class.