Dehumidifier Capacity Guide

The right capacity for your space

From everyday home comfort to crawl space moisture control and demanding commercial jobs, start with the right type of dehumidifier. Compare selected models from our range below.

Each card pairs a specific model’s advertised daily capacity with its stated maximum coverage. Use these specifications to build a shortlist, not as a universal sizing formula.

Home Dehumidifiers

For bedrooms, living rooms and household basements.

ASAHWO 21 Pint

21 pints/day

Up to 1,600 sq. ft.

Rated at 95°F / 90% RH

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Glowells 34 Pint

34 pints/day

Up to 2,500 sq. ft.

Rated at 95°F / 90% RH

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AVAHUM 150 Pint

150 pints/day

Up to 8,000 sq. ft.

95°F / 90% RH · Pump model

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Crawl Space Dehumidifiers

For under-home spaces and basements. Compare AHAM ratings where available.

AVAHUM DY113

113 pints/day

Up to 3,300 sq. ft.

Saturation rating
53 pints/day at AHAM conditions

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AVAHUM DY117PN

113 pints/day

Up to 3,500 sq. ft.

Saturation rating · Pump model
53 pints/day at AHAM conditions

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AVAHUM AM160P

155 pints/day

Up to 6,000 sq. ft.

Saturation rating · Pump model
70 pints/day at AHAM conditions

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Commercial & Industrial Dehumidifiers

For warehouses, workshops and restoration jobs. Site conditions matter as much as floor area.

AVAHUM 160 Pint

160 pints/day

Up to 7,500 sq. ft.

95°F / 90% RH · Pump model
80 pints/day at AHAM conditions

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AVAHUM AM260

250 pints/day

Up to 8,000 sq. ft.

Saturation rating
110 pints/day at AHAM conditions

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AVAHUM AM305

320 pints/day

Up to 9,000 sq. ft.

Saturation rating
130 pints/day at AHAM conditions

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Specifications are taken from the linked product listings. Pints/day means moisture removal per 24 hours, not tank capacity. Maximum coverage is model-specific and is not guaranteed in every environment.

How to choose

Home: Shortlist by room size and household application. Do not assume one unit will control separate rooms or multiple floors equally.

Crawl space: Check installation clearance, airflow and the drainage route. Compare AHAM figures where provided, not only the larger saturation number.

Industrial: High ceilings, open doors, process moisture and water-damage drying require a site-specific assessment. One unit may not be enough.

Adjust for moisture load

Occasional dampness: Start with application and room size, then monitor humidity after installation.

Persistent dampness or condensation: Avoid sizing right at the advertised coverage limit. Allow extra capacity and check ongoing moisture sources.

Leaks, standing water or flood damage: Correct the water source first. Equipment sizing should consider water load, materials being dried and airflow, not floor area alone.

Compare like-for-like ratings

High-temperature, high-humidity maximum ratings are not interchangeable with AHAM ratings. Both are shown where the selected listing provides them. Where only a saturation rating is supplied, no specific temperature or humidity is assumed. Check the exact model’s specifications before purchase.

This guide covers selected models, not every product in our range. Coverage claims are not independent sizing recommendations. Actual performance depends on temperature, humidity, ceiling height, layout, air exchange and moisture load.