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The best dehumidifiers for a bedroom

A compressor cycling on and off four feet from your head is the problem nobody warns you about. Capacity is the easy part here; noise is the decision.

By Scooter M.

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Last updated

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A dark, sparsely furnished bedroom at night

The short answer

For a bedroom, a 30 to 32-pint compressor unit at around 318 watts is usually the right size and roughly the quietest a real dehumidifier gets. If the room only smells slightly musty, a thermoelectric mini is silent - but it removes about one pint a day against a compressor unit's thirty.

The noise problem, honestly

We have not measured any of these machines, and we are not going to print a decibel figure we did not record. What we can tell you is mechanical, and it is enough to make the decision.

A compressor dehumidifier makes two sounds. The fan is continuous and broadband, and most people habituate to it within a night or two - it is essentially white noise. The compressor is the problem: it starts and stops as the humidistat cycles, and a sound that changes is far more disruptive than a louder sound that does not. A machine that is oversized for the room cycles more often, because it hits the target faster and then shuts off.

That is the actual argument for a smaller unit in a bedroom, and it is the opposite of the usual buying advice. A correctly sized 30-pint machine in a mildly damp bedroom runs a long, steady cycle. An oversized 50-pint machine in the same room runs a short cycle every twenty minutes, all night.

The thermoelectric option, and its limit

Thermoelectric - Peltier - units have no compressor at all. They are effectively silent, and for a bedroom that is a real advantage rather than a marketing line. The limit is capacity: the Pro Breeze mini on this page removes 17 ounces a day, which is 1.06 pints. A 30-pint machine removes thirty.

So it is the right answer for exactly one situation: a small enclosed space with a faint musty smell and no measurable humidity problem. A wardrobe. An ensuite. A single closet. It is the wrong answer for a room, and the fact that its listing claims 215 square feet of coverage does not change that. Dehumidifier versus DampRid covers the same scale question from the other end.

An audio level meter glowing in a darkened room
We have not measured any of these. What follows is mechanical reasoning, not a decibel table.

Quick picks

#ProductBest forDrawPrice
1
hOmeLabs 32 Pint DehumidifierhOmeLabs 32 Pint DehumidifierThe one hOmeLabs unit with a named entry in the ENERGY STAR list, so it is the one where the running cost is a published figure rather than a class estimate.
A bedroom that is damp but not wet318 W
2
Waykar 30 Pint ENERGY STAR DehumidifierWaykar 30 Pint ENERGY STAR DehumidifierA small-footprint unit sized for one room, and one of the cheapest ways to buy an ENERGY STAR Most Efficient claim at this capacity.
An apartment or a single damp roomNot published
3
Honeywell Smart Wi-Fi 30 Pint Dehumidifier (TP50AWKN)Honeywell Smart Wi-Fi 30 Pint Dehumidifier (TP50AWKN)The anti-spill design is the actual selling point here, and it is a better reason to buy than the voice control the listing leads with.
A room you want to run on a scheduleNot published
4
hOmeLabs 8 Pint DehumidifierhOmeLabs 8 Pint DehumidifierA real compressor unit at a size where most competitors sell thermoelectric toys, which makes it the smallest machine here that actually removes meaningful water.
A closet, a boat, or a single small roomNot published
5
Pro Breeze Electric Mini DehumidifierPro Breeze Electric Mini DehumidifierA thermoelectric unit that removes about one pint a day, which is roughly one fiftieth of a 50-pint machine and needs saying out loud before anyone buys one for a basement.
A wardrobe, and honestly not much moreNot published
1

hOmeLabs

hOmeLabs 32 Pint Dehumidifier

Best for: A bedroom that is damp but not wet

hOmeLabs 32 Pint Dehumidifier

The one hOmeLabs unit with a named entry in the ENERGY STAR list, so it is the one where the running cost is a published figure rather than a class estimate.

Average draw

318 W

Computed from the ENERGY STAR certified entry hOmeLabs HME0089: 32.46 pt/day at IEF 2.01 L/kWh. This is the only hOmeLabs capacity in this registry with a named certified entry, which is why it is the only one carrying a number rather than a band.

What is good

  • 318 W against the 50-pint class median of 488 W - about 35% less to run, hour for hour
  • Named in the ENERGY STAR certified list, so its IEF is public
  • Quiet enough for a bedroom in a way that a 50-pint compressor generally is not
  • Wi-Fi and auto shut-off at a small-unit price

What is not

  • 32 DOE pints is genuinely less water than 50 - undersizing a wet basement costs more than the machine saved
  • Gravity drainage only
  • 4,500 sq ft coverage for 32 pints is another claim to ignore

Who it is for

A bedroom, a home office, or a small basement that is humid rather than actively wet.

Skip it if

Skip it if the floor is ever damp to the touch or the walls sweat. That is a 50-pint problem, and a 32-pint machine will run continuously and still lose.

We have not tested this unit. Every figure above is quoted from the manufacturer or computed from published certification data, and every source is linked. How we work.

2

Waykar

Waykar 30 Pint ENERGY STAR Dehumidifier

Best for: An apartment or a single damp room

Waykar 30 Pint ENERGY STAR Dehumidifier

A small-footprint unit sized for one room, and one of the cheapest ways to buy an ENERGY STAR Most Efficient claim at this capacity.

Average draw

Not published

No published wattage. The certified 30-32 pint class runs 293-318 W with a median of 318 W across 21 certified models, and Waykar's own certified CTH120 series sits at 318 W.

What is good

  • Small enough to live in a closet or beside a washer without being in the way
  • Roughly a third less power than a 50-pint unit for a room that does not need one
  • Continuous drainage supported, not just the bucket
  • The most sensible coverage claim in this registry relative to its capacity

What is not

  • 0.62 gallon tank, the smallest here
  • No published wattage
  • 30 DOE pints is not a basement machine

Who it is for

Apartments, bedrooms, and single rooms where the humidity is a comfort problem rather than a structural one.

Skip it if

Skip it for anything below grade. A basement will beat it, and an undersized machine runs constantly, which costs more than the bigger one would have.

We have not tested this unit. Every figure above is quoted from the manufacturer or computed from published certification data, and every source is linked. How we work.

3

Honeywell

Honeywell Smart Wi-Fi 30 Pint Dehumidifier (TP50AWKN)

Best for: A room you want to run on a schedule

Honeywell Smart Wi-Fi 30 Pint Dehumidifier (TP50AWKN)

The anti-spill design is the actual selling point here, and it is a better reason to buy than the voice control the listing leads with.

Average draw

Not published

Not published. Honeywell's certified 32-pint entries, the TPFIT32AWK and TPFIT32WK, compute to 318 W at 32.46 pt/day and IEF 2.01. This is a different product line, so that figure sits in the note rather than in the spec table.

What is good

  • Anti-spill bucket, which matters more than any app feature if the machine lives upstairs
  • Scheduling through the app, so it can run when electricity is cheapest
  • ENERGY STAR certified at a small-room capacity
  • Alerts on the phone rather than only a beep in an empty room

What is not

  • No published wattage, and the certified list carries a different Honeywell line
  • 3,000 sq ft for 30 pints is an optimistic claim
  • Depends on Honeywell's app remaining supported

Who it is for

An upstairs room or a rental where a spilled bucket is somebody's ceiling, and where scheduling is genuinely useful.

Skip it if

Skip it if the machine will sit on concrete next to a drain. You would be paying for spill protection and scheduling that a floor drain makes irrelevant.

We have not tested this unit. Every figure above is quoted from the manufacturer or computed from published certification data, and every source is linked. How we work.

4

hOmeLabs

hOmeLabs 8 Pint Dehumidifier

Best for: A closet, a boat, or a single small room

hOmeLabs 8 Pint Dehumidifier

A real compressor unit at a size where most competitors sell thermoelectric toys, which makes it the smallest machine here that actually removes meaningful water.

Average draw

Not published

Not published. The certified 8-13 pint class runs 92-128 W with a median of 105 W across 39 models, and the median unit in that class uses 117 kWh a year.

What is good

  • A compressor at 8 pints, so it keeps working where a Peltier unit stops
  • Roughly a fifth of the power of a 50-pint machine
  • Wi-Fi and auto shut-off, unusual at this size
  • Small enough to sit in a wardrobe or a berth

What is not

  • 1,800 sq ft coverage for 8 DOE pints is not a serious claim
  • Bucket only - no continuous drain at this size
  • Not ENERGY STAR certified, so no published IEF

Who it is for

Closets, gun safes, boat cabins, and single small rooms where a large machine is absurd.

Skip it if

Skip it for any room where you can feel the damp. Eight pints a day is a maintenance dose, not a cure.

We have not tested this unit. Every figure above is quoted from the manufacturer or computed from published certification data, and every source is linked. How we work.

5

Pro Breeze

Pro Breeze Electric Mini Dehumidifier

Best for: A wardrobe, and honestly not much more

Pro Breeze Electric Mini Dehumidifier

A thermoelectric unit that removes about one pint a day, which is roughly one fiftieth of a 50-pint machine and needs saying out loud before anyone buys one for a basement.

Average draw

Not published

Not published, and thermoelectric units are outside the ENERGY STAR dehumidifier program entirely. Peltier modules of this size draw far less than any compressor here - but less power and less water are the same fact, not two selling points. It removes 17 oz a day, which is 1.06 pints.

What is good

  • Genuinely silent - there is no compressor to cycle on and off next to your head
  • Small and light enough to sit on a shelf inside a wardrobe
  • Auto shut-off when the 17 oz tank fills
  • Cheap enough to buy two for two closets

What is not

  • About one pint a day. A 50-pint unit removes fifty times as much
  • Stops working below 41F, which rules out the unheated spaces people usually buy it for
  • No drain option - the tank is the only outlet

Who it is for

A wardrobe, a gun safe, a bathroom cabinet, or a single small enclosed space with a musty smell.

Skip it if

Skip it for any room. This is the single most common mis-purchase in the category: it is not a small dehumidifier, it is a different class of device, and no number of them adds up to a basement machine.

We have not tested this unit. Every figure above is quoted from the manufacturer or computed from published certification data, and every source is linked. How we work.

Practical bedroom setup

  • Put it as far from the bed as the room allows, and preferably not on a hard floor that will transmit compressor vibration. A rubber mat under the feet costs almost nothing and helps more than any feature on the box.
  • Set a realistic target. 50% is comfortable and achievable. Setting 40% in a bedroom means the machine chases a number it will struggle to hold, which means more running and more cycling.
  • Run it before bed rather than during sleep if the room recovers slowly. A correctly sized unit can pull the room down in the evening and idle overnight.
  • Use the timer if it has one. Two of the units here schedule from an app, which is one of the few genuinely useful smart features in this category.
  • Empty the bucket in the evening, or run a hose. A full-bucket alarm at 3am is its own kind of problem.

What we would skip

  • A 50-pint basement unit moved upstairs

    It is the most common thing people do and it is the wrong call. A 50-pint machine is sized and geared for a basement: a bigger compressor, a bigger fan, and a cycle that will wake you. It will also overshoot a bedroom's actual moisture load and spend the night starting and stopping, which is the noise pattern humans notice most.

  • A thermoelectric mini as your only bedroom dehumidifier

    It is genuinely silent, which is why it is on this page at all. But it removes about one pint a day. If your bedroom has a real humidity problem, silence will not fix it and you will have spent money on a device that changes the reading by nothing you can measure.

How we picked

  • Noise first: no compressor at all, or a small one, and a fan sized for a room rather than a basement.
  • Power draw, because a bedroom unit may run all night. The 30-32 pint class is 318 W against a 50-pint unit's 488.
  • A bucket that does not need emptying mid-sleep, or a hose route that does not cross the floor.
  • Controls you can dim or silence. A bright display facing a bed is a real complaint.
  • We have not measured the noise of any of these. Nobody should claim a decibel figure they did not record, and we have not recorded one.

We did not test these units. The full criteria and their weighting are on the methodology page.

FAQ

Questions

Are dehumidifiers loud enough to disturb sleep?
The fan usually is not - it is steady, broadband and most people habituate. The compressor cycling on and off is what wakes people. A correctly sized unit cycles less than an oversized one, which is why bigger is not better in a bedroom.
Is it safe to sleep in a room with a dehumidifier running?
Yes. It removes water vapor from the air and returns dry, slightly warmed air. It does not consume oxygen or emit anything. Very dry air can irritate a sore throat, which is one reason not to set the target below about 45%.
What humidity should a bedroom be?
The EPA advises below 60 percent, ideally 30 to 50. In practice 45 to 50% is comfortable and easy to hold. Ideal humidity settings.
Can a dehumidifier help with allergies or mold in a bedroom?
Indirectly. Dust mites and mold both need humidity above roughly 60% to thrive, so holding a room below that removes the condition they depend on. A dehumidifier does not filter the air - that is an air purifier's job, and they are not substitutes. Dehumidifier vs air purifier.

Sources

Sources

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