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Dehumidifier for home: portable or whole-house, and what size

One room, or the whole house? A whole-house unit works through your ducts and needs a contractor to put it in. A portable plugs in wherever the damp is.

By Julien Fourel · How we compare

Updated Oct 16, 2026EPAEIA

2 picks that fit

How we pick

How we pick. Certified portable models rated 30–35 pints a day. That’s the start of the 30+ range ENERGY STAR suggests for a home over 2,000 sq ft that smells musty. Each one is sold by a store we link to. One pick per need: no app, a Wi-Fi app, and sold by the brand. Within each need, the lowest yearly energy use wins, then the higher efficiency. None of the 30–35 pint models is available yet from a brand store we link to. So that pick is missing. Stores never pay for a place.

Every model that fits

42 certified models of the right size

Rated 30–35 pints a day on the DOE 2019 test. The cheapest to run comes first, with its cost in the United States.

Showing 6 of 22 lines · cost in the United States

Certified 30 to 35 pint portable dehumidifiers, lowest yearly cost first
ModelCapacityEnergyCost a yearWi-FiEPA Most EfficientPage
Deciuu LIBRA-RCS32(Y)-N4-3(B)Filed by Zhuhai Invitop Technology32 pints333 kWh$61 NoNo
Deciuu LIBRA-RCS32(Y)-N4-3Filed by Zhuhai Invitop Technology32 pints334 kWh$61 NoNo
Vellgoo TAURUS-RCS32(Y)-N4-3Also TAURUS-RCS32(Y)-N4-3(B)32 pints335 kWh$61 NoNo
Dreo DR-HDH004SAlso sold as Dreo Home32 pints335 kWh$61 YesNo
Aeocky LEO-RCS32(Y)-N4-3(B)Filed by Zhuhai Invitop Technology32 pints336 kWh$62 NoNo
Arecovas AR-DF005Filed by Shenzhen Jinchannel Innovation Technology32 pints338 kWh$62 NoNo

Capacity

32 pints

Cost a year in the United States

$61

Energy use

333 kWh

EPA Most Efficient

No

Capacity

32 pints

Cost a year in the United States

$61

Energy use

334 kWh

EPA Most Efficient

No

Capacity

32 pints

Cost a year in the United States

$61

Energy use

335 kWh

EPA Most Efficient

No

Questions

What people ask before buying

Portable or whole-house?

ENERGY STAR draws the line clearly. A portable dries a single room or space and moves where you need it. A whole-house unit is installed on your air ducts, usually for good, and serves one or more rooms.

It suggests the second for a humid climate and a home with central air, especially when humidity reads above 55% all through the house. The EPA lists 21 certified ducted models. Whole-house vs portable compares them side by side.

ENERGY STAR, Dehumidifiers buying guidance, read Oct 5, 2026
What size for a whole home?

Over 2,000 sq ft, the ENERGY STAR table gives open ranges. A home that smells musty now and then needs 30+ pints a day. If it feels damp all the time, 40+. If walls sweat, 50+.

No certified portable goes past 50 pints. A large, wet home is whole-house territory. The 1,500 and 2,000 sq ft guides work through the numbers.

ENERGY STAR sizing guidance, read Oct 5, 2026 · EPA list, Oct 15, 2026
How do I know if my house needs a dehumidifier?

Look for water where it shouldn’t be. The EPA calls condensation on window glass, walls, or pipes a sign of high humidity. A moldy smell with no source in sight can point to hidden mold.

Then measure. A hygrometer reading above 60% is over the EPA’s limit. The ENERGY STAR sizing table reads the same clues, from a musty smell to damp spots and, at worst, sweating walls or seepage.

EPA, A Brief Guide to Mold, Moisture and Your Home, updated Feb 18, 2026 · ENERGY STAR sizing guidance, read Oct 5, 2026
Where should I put a portable, and where not?

Unless the air comes out the top, keep it away from walls and furniture so that air moves around it. Close the room’s doors and windows while it runs, and keep it away from dust, like a woodworking corner, which clogs the coils.

Draining with a hose? Put it near the floor drain or sump, and never set up drainage near electrical circuits. Below 65°F, pick a model specified for the cold, as ENERGY STAR suggests.

ENERGY STAR, Dehumidifiers buying guidance, read Oct 5, 2026
What are the downsides of a dehumidifier?

It adds to your power bill, by the figure in the next answer, and it warms the air nearby a little, ENERGY STAR notes.

Its water has to go somewhere, so plan on a bucket to empty or a hose to route. The bucket needs cleaning now and then, and so does the filter if it has one. The EPA list gives no noise figure for any of its 482 models, so ask the seller.

ENERGY STAR, Dehumidifiers buying guidance, read Oct 5, 2026 · EPA list, Oct 15, 2026
What does it cost to run?

Per portable, certified 30–35 pint models use 343 kWh a year at the EPA median. That’s $63 a year at the U.S. average price. By state, it runs from $44 in Louisiana to $165 in Hawaii.

Whole-house units are compared another way, by the cost of removing 100 pints: see the whole-house guide.

EPA list, Oct 15, 2026 · EIA, July 2026

Before you order

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Data: U.S. EPA certified dehumidifiers list (updated Oct 15, 2026, checked Oct 16, 2026); U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A (July 2026). How we compare · Report an error

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