Dehumidifier sizing
What size dehumidifier do I need?
3-step calculator • Based on AHAM DH-1-2019
Step 1 of 3 — Room details
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How big is your room?
Don't worry about being exact — give us your best estimate.
1200 sq ft
5003,000
How damp is your space?
Choose the option that best matches your situation.
Slightly: feels muggy on humid days • Moderate: musty smell, RH 60–70% • Very: damp walls, condensation • Wet: standing water or active leaks
Recommended capacity
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Pints / day
AHAM DH-1-2019 Matched to your inputs