Dehumidifier Sizing Chart

AHAM Dehumidifier Sizing Guidelines - Match Room Size to Current Humidity Conditions to Find Minimum Size Ratings

Condition Without Dehumidification500 Sq. Ft.


1,000 Sq. Ft.


1,500 Sq. Ft.


2,000 Sq. Ft.


2,500 Sq. Ft.


Moderately Damp with Musty Odors in Humid Weather

10 pints14 pints18 pints22 pints26 pints
Very Damp with Odors and Damp Spots on Walls and Floors12 pints17 pints22 pints27 pints32 pints
Very Wet with Sweating Walls and/or Seepage14 pints20 pints26 pints32 pints38 pints
Extremely Wet with Wet Floors and High-Load Conditions 16 pints23 pints30 pints37 pints44 pints

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