Dehumidifier Sizing Guide

Conditions of Room

Humidity % 

of Room

300

sq ft

500

sq ft

700 

sq ft

1,000 

sq ft

1,500 sq ft

Slightly Damp

Space feels damp and has occasional musty smell

50-60%

30 pint

n/a

50 pint

n/a

70 pint

Moderate Damp

Space often feels dame and often smells musty.

60-70%

30 pint

n/a

50 pint

n/a

70 pint

Very Damp

Space feels wet, smells musty; damp spots appear on walls and floor.

70-85%

n/a

50 pint

na

70 pint

n/a

Wet

Space feels wet, smells musty; see page appears on walls and floors; may have mold growth

85-100%

n/a

50 pint

70 pint

70 pint

90+ pint