Ranked Only on the Decibel Figures the Listings State, Compressor and Thermoelectric
5 picks compared · prices, ratings and stock checked October 12, 2026
Our Top Pick
For a bedroom or living space that is actually damp, the Kesnos 30 Pint: a compressor unit stated at 36 dB, with a drain hose in the box. For a small room where silence matters more than drying power, the PSOS 98 oz thermoelectric unit, with a light-free sleep mode under 30 dBA.
4.5 on Amazon · 4,217 ratings
Quick answer
If you need a quiet dehumidifier that still dries a damp room, buy the Kesnos 30 Pint, a compressor unit whose listing states 36 dB and up to 30 pints a day at 95°F and 90% RH. For a small, slightly damp bedroom, the PSOS 98 oz thermoelectric unit lists a sleep mode under 30 dBA, but it removes ounces, not pints. Every 10 dB step sounds roughly twice as loud, and none of these listings says how far from the unit its figure was measured, so treat the numbers as a ranking, not a promise.
Every pick below is currently stocked — ratings and stock read from Amazon on 12 October 2026.
Best for: A bedroom, apartment or finished basement room that is truly damp and where you also sleep or work
Listing verified 13 Oct 2026
Best for: A small bedroom or nursery that is only slightly damp, where silence and darkness matter most
Listing verified 13 Oct 2026
Best for: A basement bedroom, guest suite or open living area that needs a big unit running while people sleep nearby
Listing verified 13 Oct 2026
Best for: A finished basement, family room or large open space that is damp and lived in
Listing verified 13 Oct 2026
Best for: A basement rec room or bedroom where a big unit can run on its low fan and still remove plenty of water
Listing verified 13 Oct 2026
How this page was made: we compare the current Amazon listings, the makers' published specs and what verified buyers report, then rank by fit for the job. Ratings, review counts and stock are read from Amazon and dated. We earn a commission on purchases through our links; it does not change the order. Reviewed by Marcus Reed, IICRC-certified Water Restoration Technician.
Full Reviews
Each pick in detail: what the listing states, what buyers report, and where it falls short.
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Listing verified 13 Oct 2026
See it on Amazon ↗Best Overall: Quietest Stated Compressor
Quick Verdict
Kesnos 30 Pint: a compressor unit stated at 36 dB that still removes up to 30 pints a day, the balance most damp bedrooms need.
Key Specs
Noise (stated)
36 dB; mode, fan speed and distance not given
Type
Compressor
Capacity (stated)
Up to 30 pints/day at 95°F and 90% RH
Modes
Comfort, Dry, Continuous and Turbo
Drainage
0.39 gal tank with auto stop; 3.3 ft drain hose included
Size
11.02 x 7.68 x 15.20 in; 360-degree casters
Pros
Cons
Suited to
A bedroom, apartment or finished basement room that is truly damp and where you also sleep or work
Our take
The Kesnos ranks first because it pairs the lowest decibel figure of any compressor listing here, 36 dB, with enough capacity to matter: up to 30 pints a day at 95°F and 90% RH. Thermoelectric units are quieter on paper, but they remove ounces, and a bedroom that is truly damp will outrun them. Read the 36 dB with care. The listing does not say which mode, fan speed or distance it applies to, and a compressor's sound changes when it kicks on, so expect a soft hum with a click at each start. Use Comfort mode at night and let it cycle against a target, roll it a few feet from the bed, and run the 3.3 ft hose so a full tank never stops it at 3 a.m.
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These open a search for this model. We quote prices only where we can verify them — Amazon, Sylvane and eBay.
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Listing verified 13 Oct 2026
See it on Amazon ↗Quietest for a Small Bedroom
Quick Verdict
PSOS 98 oz Dual-Semiconductor: under 30 dBA and light-free in sleep mode, for a small room that is only slightly damp.
Key Specs
Noise (stated)
Under 30 dBA in low-speed sleep mode
Type
Thermoelectric, two semiconductor chips
Daily removal
Not stated on the listing
Tank
98 oz; auto shut-off when full
Display
Humidity and temperature readout
Low temperature (stated)
Runs at down to 41°F, with auto defrost
Pros
Cons
Suited to
A small bedroom or nursery that is only slightly damp, where silence and darkness matter most
Our take
If the noise itself is the problem, this is the quietest stated figure on the page: under 30 dBA in its low-speed sleep mode, and the listing uses dBA, the scale weighted toward how human ears hear. Sleep mode also switches the lights off, which is the other thing that keeps people awake. The trade is drying power. It is a thermoelectric unit, the listing gives no daily removal figure, and sleep mode slows the fan further. So use it the way it works best: run it in its powerful mode during the day with the door shut, drop to sleep mode at night, and read the built-in humidity display in the morning. If the room will not settle under 50%, it needs a compressor unit.
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Listing verified 13 Oct 2026
See it on Amazon ↗Best for Sleeping Near a Large Unit
Quick Verdict
KNKA 80 Pint: 40 to 45 dB with a display that turns off and an AUTO mode that holds 50%, for big spaces people sleep in.
Key Specs
Noise (stated)
40–45 dB
Capacity (stated)
80 pints/day at 95°F and 95% RH; 56 pints/day at 86°F and 80% RH
Lights
Humidity display and indicator lights can be turned off
Modes
AUTO (holds 50% RH by default), DRY, and SETTING (30–80% RH)
Drainage
1.45 gal tank; 6.56 ft drain hose; optional 2.64 gal external tank sold separately
Coverage (stated)
Up to 5,500 sq ft
Pros
Cons
Suited to
A basement bedroom, guest suite or open living area that needs a big unit running while people sleep nearby
Our take
The KNKA is the pick for sleeping in the same space as a large unit. Two details on its listing matter for that. The humidity display and indicator lights can be switched off, so it does not light up a dark room, and AUTO mode holds 50% by default, so it stops when the air is dry instead of running all night. Its noise is stated as a range, 40 to 45 dB, which is fair to a machine whose fan and compressor change pitch, though it leaves out which setting gives which number. Capacity is stated at 86°F and 80% RH as well as at the usual 95°F, and 56 pints a day at that milder condition is plenty of headroom for a basement bedroom.
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Listing verified 13 Oct 2026
See it on Amazon ↗Best Quiet Pick for a Large Damp Room
Quick Verdict
Waykar 80 Pint: about 42 dB with 80 pints a day of capacity, so it dries a large room fast and then goes quiet.
Key Specs
Noise (stated)
About 42 dB
Capacity (stated)
80 pints/day at 95°F and 90% RH
Humidity range (stated)
30% to 80% RH
Airflow
90-degree auto swing louver
Drainage
4.3 L (1.14 gal) tank; 3.3 ft drain hose with a 3/4 in garden-hose connection
Timer
24 hours
Pros
Cons
Suited to
A finished basement, family room or large open space that is damp and lived in
Our take
The Waykar is here for a large damp space where you also spend time, such as a finished basement or a family room off the garage. Its listing gives one noise figure, about 42 dB, and pairs it with 80 pints a day at 95°F and 90% RH, so it can pull a big room down quickly and then shut off. That is the point of a large unit in a quiet setup: it reaches the target and stops, where a small machine runs flat out for hours. The listing does not mention a sleep mode, so use the 24-hour timer to run it through the day and evening, and set the target near 50% so it rests overnight.
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Listing verified 13 Oct 2026
See it on Amazon ↗Clearest Noise Figure
Quick Verdict
AEOCKY RHEA-001: 44 dB at its lowest fan, the one figure here tied to a fan speed, with 56 pints a day at 86°F and 80% RH.
Key Specs
Noise (stated)
44 dB at the lowest fan speed
Capacity (stated)
56 pints/day at 86°F and 80% RH; up to 80 pints/day at 95°F and 95% RH
Efficiency
ENERGY STAR Most Efficient 2025, per the listing
Compressor
Rotary, with copper tubing, per the listing
Coverage (stated)
Up to 5,500 sq ft
Low temperature
Defrost sensors for cool spaces, per the listing
Pros
Cons
Suited to
A basement rec room or bedroom where a big unit can run on its low fan and still remove plenty of water
Our take
AEOCKY is on this list for how clearly it states its noise, not for being the quietest. It is the only listing here that says which fan speed its figure belongs to: 44 dB at the lowest speed. That makes it the loudest stated figure on the page, yet it is the most useful kind of figure, because every other number here could have been measured at the quietest setting without saying so. Pair it with the capacity line, 56 pints a day at 86°F and 80% RH, and you have a large basement unit that can sit on its low fan and still remove a lot of water. Set the target, leave it on low, and keep it as far from the sleeping area as the room allows.
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What to know before you buy.
A compressor dehumidifier makes two sounds: the fan, and the compressor's hum, which starts with a click and stops when the target humidity is reached. The fan speed is the part you control, which is why low-fan and sleep settings matter. A thermoelectric unit has no compressor at all, only a small fan moving air over a cooled chip, so its sound is a steady whisper with no start-up click. That is why the quietest stated figure on this page, under 30 dBA, belongs to a thermoelectric unit, and why the compressor units start at 36 dB. The catch is output. A thermoelectric unit removes ounces a day, a compressor unit removes pints, and a quiet machine that cannot keep the room dry has not solved anything.
Decibels are logarithmic, so small gaps matter: every 10 dB step sounds roughly twice as loud, which makes a 45 dB unit sound about twice as loud as a 35 dB one. The figures on these listings are the sellers' own, and none of the five picks says how far from the unit it was measured. Only the AEOCKY names the fan speed behind its number, and only the PSOS uses dBA, the scale weighted to human hearing. A range like the KNKA's 40 to 45 dB is fairer than a single number, because a dehumidifier's sound changes as the fan steps up and the compressor cycles. Read a listed figure as the quietest setting and expect higher fan speeds to be louder. A listing with no figure at all tells you nothing about noise.
A sleep mode usually means a slower fan and the lights off, and both cut the moisture removed overnight. That is fine if the room was dried during the day. The working pattern is to run the unit on its normal or high setting while the room is empty, with the door shut, then switch to sleep mode or let a humidity target take over at night. Set that target near 50%. The EPA's ideal range is 30% to 50%, and a compressor unit that reaches it shuts off and stays quiet until the air drifts up again. On a unit with no sleep mode, a timer does the same job. Check the lights as well as the sound: the KNKA's display turns off, and the PSOS sleep mode is light-free.
Where the unit sits changes how loud it sounds. On a hardwood or tile floor, a compressor's vibration passes into the floor and spreads, so stand it on a dense rubber or foam anti-vibration mat, the kind sold for washing machines. Keep it level, because a tilted unit rattles. Leave space around it: ENERGY STAR advises keeping a unit without top-mounted discharge away from walls and furniture, which also stops sound bouncing straight back off a nearby wall. Distance helps more than people expect. In open air, doubling your distance from a sound source cuts its level by about 6 dB, so a unit 8 feet from the bed sounds quieter than one at 4 feet, even though walls reflect some sound back. Keep it off hollow shelves and cabinets, which act like a drum.
Do not choose a dehumidifier on its noise figure alone if the room has a real moisture problem. A basement that takes in water after rain, a bedroom where mold keeps returning on a window sill, or a space that reads above 60% humidity for days needs capacity first; pick the quietest unit that can hold the target, then use placement and timing to deal with the sound. Thermoelectric units are the wrong choice there, however silent. Light sleepers in a room that is only slightly damp are better served by a thermoelectric unit, or by running a compressor unit during the day and switching it off at bedtime. If mold covers more than about 10 square feet, the EPA treats it as more than a routine homeowner cleanup, and no dehumidifier replaces fixing the water source.
Compressor dehumidifiers make a moderate hum, and thermoelectric units are close to silent. The compressor units on this page state 36 to 45 dB, while the thermoelectric PSOS lists under 30 dBA in sleep mode.
A compressor also clicks on and off as it cycles. Placement changes what you hear: a unit on a hard floor near a wall sounds louder than the same unit on a mat in open space.
YesIf it is quiet enough for you and set up for the night.
Use a sleep mode, or a humidity target near 50% so a compressor unit shuts off once the room is dry, and turn off the display lights. Place it a few feet from the bed on a level mat. Empty the tank before bed or run a drain hose, so it does not stop partway through the night.
Thermoelectric, or Peltier, units are the quietest electric type, because they have no compressor, and silica gel absorbers make no sound at all. The PSOS on this page lists under 30 dBA in sleep mode.
Both types remove far less water than a compressor unit, so they suit a small, mildly damp room and not a basement or a room that stays above 60% humidity.
For a bedroom, aim for a listed figure under about 40 dB, which on this page only the Kesnos compressor unit, at 36 dB, and the PSOS thermoelectric unit, under 30 dBA, meet.
Treat any listed number as a best case, since none of these listings states the measuring distance and only one names the fan speed. Every 10 dB higher sounds about twice as loud.
Usually because it sits on a hard or uneven floor, close to a wall, on high fan, or with a clogged filter. Put it on a level anti-vibration mat, pull it away from walls and furniture, and clean the filter and intake.
A rattle that starts suddenly can mean a loose panel or a failing fan, and a compressor that never shuts off may be undersized for the room or set to continuous mode.
YesAs long as it has auto shut-off or a drain hose and room to breathe.
Compressor units like the picks here are built to cycle on and off against a humidity target, so set one near 50% rather than leaving it in continuous mode, which can overdry the room. Keep the intake and outlet clear of bedding, curtains and furniture.
Call (888) 840-6512. The line is answered 24 hours a day, seven days a week, and connects you with an IICRC-certified water damage restoration company that serves your area. A recorded menu picks up first: choose water damage or mold, key in your 5-digit ZIP code, and hold through the short silence while the call is passed to the company.
Describe what you can see — where the water is coming from, how long it has been there, and whether it smells — the more specific you are, the faster the right company is on the line. If the source is a pipe or an appliance, shut the main water valve first. Have four things ready and the call goes quickly: the address, when the water started, what is wet now, and whether you have filed an insurance claim.
Still not sure which of these is your situation? (888) 840-6512 · toll-free · answered 24/7
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A bedroom dehumidifier has to be quiet enough to sleep beside, and five of the six picks here are thermoelectric units that remove ounces of water a day rather than pints. That is enough for a stuffy bedroom, closet or studio apartment; for a room with wet windows every morning, the sixth pick is a small compressor unit rated in pints.
Read the comparisonThe right dehumidifier for a home depends on the size of the space and how damp it is, and the pint number on the box depends on which test produced it. These five picks run from a 22-pint single-room unit to an 80-pint machine for a whole basement, compared on the figures their listings actually state.
Read the comparisonMost basement dehumidifier disappointment comes from two numbers nobody reads properly: the pint rating, measured at warm test conditions a 60°F basement never reaches, and the drainage method. Five units are compared here on those two points first, from a garden-hose drain to a built-in pump with a stated 15 ft lift.
Read the comparisonA hygrometer is the small, inexpensive instrument that tells you whether a room needs a dehumidifier, a humidifier or nothing at all. These picks are judged on the accuracy each listing states, how easily you can read them, and whether they can warn you about a damp basement before you smell it.
Read the comparison