What Size Dehumidifier Do I Need?

What pint capacity do you actually need?

Quick Answer

For a moderately damp room of 500 square feet, you need a 30-pint dehumidifier. Very damp or wet spaces need 40–50 pints. Basements over 1,000 sq ft typically require a 50–70 pint unit. The right size runs fewer hours and costs less to operate than an undersized unit working overtime.

Data sources:EIA (US)Ofgem (UK)Last verified: July 2026
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