What Is the Best Dehumidifier to Buy for a Bedroom

The best dehumidifier to buy for a bedroom is a Midea Cube sized to what you can see in the room rather than to the square footage on the box. A room that smells musty while the door is shut needs the 20-pint; a room with water beading on the glass needs the 50-pint. Two checks decide between them, and you can make both from the doorway: where the water goes when the tank fills, and how cold the room gets in winter. The same two checks apply to the best home dehumidifier as well.

Midea Cube Dehumidifier

The Midea Cube is the line to buy from because it answers the two chores a bedroom dehumidifier creates. Its body lifts and twists to extend for a bigger tank, it runs from an app or by voice, and it takes a drain hose when you'd rather stop emptying it.

Check the room's air before you size anything. If a gauge reads under 60% and nothing is beading on the glass, there's no moisture problem to buy your way out of, because condensation and mold risk start above 60%. Hold the room between 30% and 50% once a unit is running.

Match your room to one of these four, then buy that line.

• Cold pipes and window glass bead with water, and a musty smell that builds while the door is shut clears once you run a fan. That's a slightly to moderately damp room, which takes 20 to 30 pints a day in a space under 2,000 sq ft, so get the 20-pint Midea Cube.
• The walls or the window frame feel damp to the touch, and the musty smell is back within a day of airing the room out. That's very damp, which takes 25 to 40 pints, so get the 35-pint Midea Cube.
• Paint is peeling, the window runs with water on cold mornings, or the room doubles as a bathroom that stays steamy for an hour after a shower. That's a wet space, which takes 30 to 50 pints. Get the 50-pint Midea Cube, which recovered fastest and ran most efficiently of the 34 high-capacity units in one published test and carries the largest tank in that class.
• The only sink or drain sits higher than the dehumidifier, or the floor has no drain at all. Gravity only falls, which puts you in pump territory: get the 50-pint Midea Cube with the built-in pump.

Pump lift varies by model, so check the number for the one you buy: 14 feet on the Cube against 16 feet on GE's pump units. Route a hose clear of any space that drops to 32F, since ice blocks the line and stops the unit, and keep a gravity run short, flat and downhill the whole way.

If your room is only lightly damp and you need a pump, the 50-pint model is still the answer: no 20-pint Cube ships with a pump, and Midea's only 35-pint pump model is discontinued. GE's 50-pint pump unit, the APYR50LC, is out of production with no successor named, so the pump branch comes back to the 50-pint Cube.

Cold settles whether a compressor machine can work in there at all. Below 41F the coils frost and the unit stops doing its job, and the Cube is a compressor machine, so a bedroom that drops below 41F needs a desiccant model instead. Below about 50F the case for desiccant gets stronger, and above 41F the Cube is fine.

Noise is the limit you can't buy your way around. For sleep the target is under 30 dB(A), and the quietest unit in the published rankings measures about 51 dB, with most running 50 to 70. Run yours before bed or while you're out of the room. A dehumidifier takes moisture out of the air rather than out of you, so the trade an overnight run asks of you is noise alone.

Set it on a level floor, clear of standing water and anything that blocks the intake, and never on an extension cord or a multi-outlet adapter. Check the hose now and then, because dust in the condensate turns into sludge and algae that plugs the run.

If you'll empty a tank, we'd take the 20 or 35-pint Cube. If you won't, we'd take the pump model that drains itself.

Best Dehumidifier for Small Bedroom

The best dehumidifier for small bedroom is the machine that matches the dampness rather than the floor area. That's the same answer for a bigger room at the same dampness. A small bedroom, a 1,000 sq ft basement and a 1,500 sq ft basement all land in the same sizing band, which is why a bedroom dehumidifier and a basement dehumidifier are frequently the same machine.

The floor for a bedroom is 20 pints, which is the 20-pint Cube, and it fits while the room's problem is a musty smell rather than damp walls. When you're between two sizes, take the bigger one.

If you're replacing an old dehumidifier, read its number twice before you match it: an old 30-pint unit is about today's 20-pint, because ratings fell by roughly a third when the test moved to a colder room. Round up.

If you're comparing small bedroom dehumidifiers on Reddit or on Amazon, compare pints per day against the dampness you can see. Treat the square-footage claims on the box as marketing rather than a certification.

Consumer Reports rates nearly 70 models on six things, and three of them are the bedroom ones: noise measured at three feet, how often you empty the tank, and humidistat accuracy. The other three are water removed against the claimed pint capacity, energy per pint, and reliability from a survey of 11,944 owners. Those scores sit behind a subscription, which is where to look if the pint band leaves you choosing between two names.

Best Dehumidifier for Bathroom

The best dehumidifier for bathroom without a vent fan is a 50-pint unit, which is a bigger machine than the size of the room suggests. A bathroom sits far under the 2,000 sq ft band line, and dampness is what decides it. A room that holds steam for an hour after a shower is wet, which takes 30 to 50 pints, so the 50-pint Midea Cube is the machine that fits.

In a bathroom where the exhaust fan clears the mirror quickly, the fan is already doing the work. An unvented bath is one of the moisture sources that calls for a dehumidifier at all.

The best dehumidifier for bedroom is picked on dampness that builds over days. A bathroom's problem arrives with the first hot shower, and that's why a tiny wet room takes the larger rating. If you're reading bathroom dehumidifier threads on Reddit, the wet-tier pint number settles the room before any brand does.

Bathroom drainage runs into the same fork as the bedroom. If the sink sits higher than the unit, take the 50-pint Cube with the pump; if a floor drain sits below it, gravity does the work.

Best Dehumidifier for Living Room

A living room with damp walls or wet windows takes a 50-pint unit, and the reason is size. An open-plan space that runs into a kitchen and a hallway can pass 2,000 sq ft. Past that line the bands step up to 30, 40 and 50 pints for the same three dampness levels, so a big open room with damp walls takes the 50-pint Midea Cube.

One unit in the living room can't dry a whole house. Whole-structure dehumidification is a separate category, handled by installers rather than by a plug-in unit in one room.

The noise limit that shapes a bedroom pick eases in here, since you're awake, and the drain question arrives in the same form: gravity downhill, or a pump uphill. Keep the room in the 30% to 50% band and you'll see it working on the first cold morning, when the windows stop sweating.