4 Quietest Dehumidifiers With Below 53 dB Noise Levels

Dehumidifiers can be quite noisy. Their humming can produce more than 65 dB noise levels; not something you can ignore. To amend that, there is a special class of the quietest dehumidifiers. Pretty much every big dehumidifier manufacturer produces a whisper-quiet dehumidifier model.

We gathered all the flagship quietest dehumidifiers from major, reliable brands. First of all, they are more than capable of adequately decrease the indoor humidity levels to 30% – 50% optimum levels (to prevent mold infections, breathing problems, profuse sweating while indoors, etc.).

Secondly, dehumidifiers are quieter than an average fridge, and you shouldn’t hear their humming even if you are:

  • 3 feet away and 2 feet higher.
  • 2 feet away and 1 foot higher than the center of the dehumidifier.
  • Sitting right next to the dehumidifier and having a silent conversation (the noise levels there should be below 55 dB; considered super quiet for dehumidifier).

In short, the most silent dehumidifier should be so quiet you would have no problems sleeping with it in the room.

how noisy are dehumidifers
Decibel levels of quiet, neutral, and loud dehumidifiers.

Picking which dehumidifier on the market is the quietest is pretty straightforward:

If you crack open all the specification sheets, check the noise levels, you can rank the dehumidifiers from the quietest to the loudest. And that’s exactly what we did.

Below you will find the list of the 4 quietest dehumidifiers. Do check the comparison table to see how the noise levels differ and read the reviews of each whisper-quiet dehumidifier. You can skip to the list, table, and reviews here:

Skip To List Of Quietest Dehumidifiers In 2021

Of course, the specified noise levels shouldn’t be blindly trusted. That’s why we cross-reference the specified noise levels with actual experience, and measured noise levels (either by ear or decibel meter).

It’s not enough for the dehumidifier to be silent, however. It has to be through-and-through a reliable device, capable of removing the adequate amount of moisture from your indoor air. This will reduce the relative humidity levels to below 50%.

Before we check the quietest dehumidifiers in 2021, let’s look at sources of noise in dehumidifiers, and look at the key general specifications (like dehumidification capacity, coverage, drainage types, energy-efficiency) to familiarize ourselves with the ins and outs of dehumidifiers:

What Makes A Dehumidifier Silent?

Here are the two most frequently asked question about dehumidifiers and noise levels:

“Is a dehumidifier noisy?”

“Why is my dehumidifier noisy?”

Dehumidifiers, if you pick the right ones, are not noisy at all. But you need to know what to look for when choosing a silent dehumidifier.

If you break down a standard dehumidifiers part by part, you can check which part is the one that actually produces noise. Evaporator and condenser coils, for example, don’t produce noise; they just facilitate the refrigerant flow and enable the expansion and compression of refrigerant.

The two parts that are the main sources of noise in a dehumidifier are:

  • Compressor. The primary source of decibels. The compressor is basically the motor that enabled the reduction in relative humidity levels via the process of moist air condensation. Like every motor, it’s loud.
  • Fan and airflow. The rotating fan sucks in the moist air and expels dry air. The rotating blades as well as the swirling sound of airflow are secondary sources of noise levels in dehumidifiers.
what makes dehumidifiers noisy
Dehumidifiers have 2 sources of noise: Compressor (primary) and fan (secondary).

Silent dehumidifiers are simply dehumidifiers that have a:

  • Quiet compressor.
  • Low-noise fan and optimal airflow.

Usually, only the bigger HVAC companies have the superb engineering needed to produce quiet dehumidifier compressors.

All the 4 models of the whisper-quiet dehumidifiers you will find in the list below – by GE, TOSOT, Midea, and Honeywell – come equipped with quiet compressors. The low-noise compressors are exactly what makes their operation so silent.

Noise Levels of Dehumidifiers

To measure noise levels, we use decibel meters. With ears, you can hear if the dehumidifier is indeed quiet or not. With a decibel meter, you can measure precisely how quiet it is.

There is no established categorization of dehumidifiers by noise levels. That’s why we have established one that appropriately categorizes all dehumidifiers by how noisy they are. Here are the categories with the noise level intervals:

  • Loud dehumidifiers: Over 65 dB.
  • Noisy dehumidifiers: Between 60 dB and 65 dB.
  • Neutral dehumidifiers: Between 57 dB and 60 dB.
  • Quiet dehumidifiers: Between 53 dB and 57 dB.
  • Super quiet dehumidifiers: Below 53 dB. These are the class of the quietest dehumidifiers.

How To Choose A Dehumidifier (In General)

Apart from the noise levels, there are several metrics that determine if the quiet dehumidifier is any good. Let’s quickly go over these specifications in order to help everybody to make a more informed decision when picking a dehumidifier that is silent as well as reliable.

Size Of Silent Dehumidifiers (Dehumidification Capacity)

Quiet dehumidifiers come in various sizes. You might see the 20 Pint, 30 Pint, and 50 Pint dehumidifiers.

Those ‘Pints’ are the dehumidification capacity. It is the amount of moisture a dehumidifier will extract from indoor air in 24 hours in realistic conditions. The higher the Pint/day dehumidification capacity, the quicker the dehumidifier will lower the indoor relative humidity levels.

In short, the 50 Pint/day models are the best quiet dehumidifiers because they are both silent and have high dehumidification capacity; the perfect combination.

50 Pint TOSOT dehumidifier is the basement. Max. noise levels: 51 dB.

Note: You might see 2 different standards; 2012 DOE and 2019 DOE standards. We always list the dehumidification capacity according to the newer standard. Example: 2012 DOE 70 Pint/day units are now considered 50 Pint/day units according to the newer 2019 DOE standard.

The difference is in conditions. 2012 DOE standard testing was conducted at near perfect conditions: 80°F and 60% relative humidity. The results were too ideal for a realistic situation.

2019 DOE standard testing is more realistic. The dehumidifier testing conditions are 65°F and 60% relative humidity; much more realistic, and will additionally give you a better approximation for how well the quiet dehumidifiers in the basement perform.

Coverage Space Up To 4,500 Sq Ft (Really?)

50 Pint/day portable dehumidifiers have a specified coverage space of up to 4,500 sq ft. That’s quite a big number; most people don’t 4,500 sq ft houses.

Can you put a 4,500 sq ft dehumidifier in a 1000 sq ft or 2000 sq ft home?

Of course, you can. 

The maximum coverage area specs are a bit exaggerated. Or, to put it more accurately, they predispose that the portable dehumidifier will be moved around from room to room. In such a way, you can achieve silent dehumidification in every room.

In any case, the true benchmark is not the specified coverage area; it’s the dehumidification capacity (Pints/day).

Drainage Type And Bucket Size

All the moisture quiet dehumidifiers collect, needs to be collected and disposed of somewhere. The most basic type of drainage is via bucket.

That includes buckets of various sizes – from 0.5-gallon to 2-gallon tanks – that get filled and then you have to manually empty it. Most of the portable dehumidifiers, including some of the quietest ones, have this drainage type.

In addition to the bucket, you can also hook up a garden hose (3/4-inch hose) for continuous drainage. The tank will continuously be emptied but only if you aren’t working against gravity. Example: Quiet dehumidifiers for the basement usually require anti-gravity drainage because basements are located at the base of the house.

The advanced method is via a pump. The best quiet dehumidifier is with a pump for a reason; you can auto-drain it even against gravity. The built-in pump can pump the collected water just about anywhere.

Can Quiet Dehumidifiers Be Energy-Efficient As Well?

Even the quietest dehumidifiers should be energy-efficient. Not having an energy-efficient dehumidifier can cost you $100s in electricity bills in the next 5-to-10 years.

The energy-efficiency is not as important as with ducted whole-house dehumidifiers but it still matters quite a lot. 

The easiest way to know if you’re looking at a quiet energy-efficient dehumidifier is by checking the Energy Star rating. All dehumidifiers with Energy Star rating have an above-average energy-efficiency that will save you money in comparison with non-Energy Star rating dehumidifiers. On average, Energy Star rated units will use 30% less electricity.

The dehumidifier’s energy-efficiency of all units in the list is above average; they all have the coveted Energy Star rating that serves as an assurance of an electricity-saving and eco-friendly dehumidification process.


With all that in mind, let’s look at the list of the quietest dehumidifiers currently on the market:

Most Quiet Dehumidifiers In 2021 (List And Comparison)

  1. GE APER50LZ: Overall The Quietest Dehumidifier With Pump (47-51 dB).
  2. TOSOT GDN50BA-A3EBA2E: Cheap Whisper Quiet Dehumidifier (Up to 51 dB).
  3. MIDEA MAD35C1ZWS: Most Quiet Small Dehumidifier (49-51 dB).
  4. Honeywell TP70AWKN: Quietest Dehumidifier For Basement (Up to 52 dB).
Quiet Dehumidifier: #1 GE APER50LZ #2 TOSOT GDN50BA-A3EBA2E #3 MIDEA MAD35C1ZWS #4 Honeywell TP70AWKN
Photo:
Noise Levels: 47-51 dB Up to 51 dB 49-51 dB Up to 52 dB
Dehum. Capacity: 50 Pint/day 50 Pint/day 20 Pint/day 50 Pint/day
Coverage: Up to 4,500 sq ft Up to 4,500 sq ft Up to 1,500 sq ft Up to 4,500 sq ft
Bucket Capacity: 15 Pints 16 Pints 6.4 Pints 14 Pints
Drainage: Built-in Pump Manual, Drain Hose Manual, Drain Hose Manual, Drain Hose
Energy Star Rating: Yes Yes Yes Yes
Price: $$$$ $$$$ $$$$ $$$$
Average Rating: 4.9 out of 5 stars 4.8 out of 5 stars 4.8 out of 5 stars 4.8 out of 5 stars
Availability: Check Price Check Price Check Price Check Price

1. GE APER50LZ: Overall The Quietest Dehumidifier With Pump (47-51 dB)

GE APER50LZ: Overall The Quietest Dehumidifier With Pump (47-51 dB)
Noise Levels: 47-51 dB
Dehum. Capacity: 50 Pint/day
Coverage: Up to 4,500 sq ft
Bucket Capacity: 15 inches
Drainage: Built-in Pump
Energy Star Rating: Yes
Dimensions (HxWxD): 11.38″ x 14.76″ x 24.02″
Weight: 46.8 lbs
Price: $$$$
Rating: 4.9 out of 5 stars

GE (General Electric) is the biggest brand that makes dehumidifiers. They make everything from light bulbs to air conditioners. Their flagship quiet dehumidifier is the GE APER50LZ; it is the overall best super quiet dehumidifier with a built-in pump.

The GE APER50LZ has the lowest interval of noise levels of all dehumidifiers. The decibel meter reads 47 dB on the low setting and 51 dB on the high setting. No other dehumidifier can go as low as 47 dB. Decades of GE engineering experience shows; the silent compressor and whisper-quiet fan produce the minimum amount of noise.

This is a big 50 Pint/day dehumidifier with 4,500 sq ft maximum coverage. It can take care of excess moisture in pretty much any home. 

Here’s the best thing:

Built-in pump. Drainage is the primary source of frustration every dehumidifier owner points out. The GE APER50LZ comes with a 1.8-gallon bucket but you don’t have to manually empty it. You just hook the 3/4 inch hose and the built-in pump continuously drains the tank, even against gravity.

Having the quietest dehumidifier with a pump is especially useful if you have to drain the dehumidifier vertically. The pump will lift the collected water and drain it outdoors; you pretty much don’t have to do anything.

On top of that, both the quiet dehumidifier as well as the built-in pump operations are Energy Star certified. This is an energy-efficient and eco-friendly unit.

All in all, GE has created the quietest dehumidifier with a pump in the market. It’s pretty much unbeatable as far as the low-noise compressor and noise levels are concerned:

GE APER50LZ Review

Pros
  • Overall quietest dehumidifier (with as low as 47 dB noise levels)
  • Built-in pump enables anti-gravity continuous drainage; you just set it and forget it
  • Powerful 50 Pint (2019 DOE standard) unit with 4,500 sq ft max. coverage
  • Energy Star rated; energy-efficient dehumidifier and built-in pump
  • GE is a big brand; they make reliable and high-quality products that last
Cons
  • The price is a bit above-average

2. TOSOT GDN50BA-A3EBA2E: Cheap Whisper Quiet Dehumidifier (Up to 51 dB)

TOSOT GDN50BA-A3EBA2E: Cheap Whisper Quiet Dehumidifier (Up to 51 dB)
Noise Levels: Up to 51 dB
Dehum. Capacity: 50 Pint/day
Coverage: Up to 4,500 sq ft
Bucket Capacity: 16 inches
Drainage: Manual, Drain Hose
Energy Star Rating: Yes
Dimensions (HxWxD): 14.8″ x 11.4″ x 24.1″
Weight: 50.9 lbs
Price: $$$$
Rating: 4.8 out of 5 stars

TOSOT’s flagship super quiet dehumidifier is the TOSOT GDN50BA-A3EBA2E. It’s a reliable dehumidifier that comes in 20 Pint, 35 Pint, 50 Pint, and 50 Pint with pump models. We are going to review the cheap and quiet 50 Pint dehumidifier.

TOSOT 50 Pint dehumidifier is one of the most popular dehumidifiers currently on the market. The quiet noise levels are a bit part of that. Even on the highest fan speed setting, the TOSOT 50 Pint dehumidifier produces only 51 dB noise levels. Compared to rated-average noise levels of 57-60 dB, this is comparatively quieter than most dehumidifiers.

Drainage-wise, the TOSOT 50 Pint dehumidifier has a manual or/and continuous via hose drainage. The great thing is that it has the biggest tank of any 50 Pint dehumidifiers – 2 gallons or 16 Pints. On top of that, it has an ‘Auto Drain’ function; the dehumidifier will stop if the bucket is close to full which prevents spilling the gathered moisture.

Another reason why TOSOT 50 Pint dehumidifier is so popular is a very affordable price. It costs about 10-20% less than comparable units; on top of being Energy Star rated (30% electricity savings).

In short, if you rank the dehumidifier from the quietest to the noisiest, the TOSOT 50 Pint dehumidifier is at the top of that list. 50 Pint unit is the most popular, but you can also choose between 20 Pint, 35 Pint, and 50 Pint with a pump models:

TOSOT 50 Pint Review

Pros
  • Super quiet operation with up to 51 dB noise levels
  • Has the biggest bucket size (2-gallon) and ‘Auto Drain’ function
  • TOSOT is known for producing reliable and long-lasting dehumidifiers
  • Several sizes available (20, 35, 50, 50 Pint with pump)
  • Very affordable price (10-20% lower price)
Cons
  • Popular TOSOT 50 Pint model doesn’t include the built-in pump
  • Doesn’t achieve 50 Pint/day if temperature is lower than 50°F

3. MIDEA MAD35C1ZWS: Most Quiet Small Dehumidifier (49-51 dB)

MIDEA MAD35C1ZWS: Most Quiet Small Dehumidifier (49-51 dB)
Noise Levels: 49-51 dB
Dehum. Capacity: 20 Pint/day
Coverage: Up to 1,500 sq ft
Bucket Capacity: 6.4 inches
Drainage: Manual, Drain Hose
Energy Star Rating: Yes
Dimensions (HxWxD): 15.31″ x 10.51″ x 19.8″
Weight: 33.5 lbs
Price: $$$$
Rating: 4.8 out of 5 stars

MIDEA MAD35C1ZWS is the most popular small dehumidifier in 2021. The 20 Pint unit is capable of reducing excess moisture levels in up to 1,500 sq ft spaces. Let’s check the noise levels:

49-51 dB is way below average noise generation for a dehumidifier. MIDEA MAD35C1ZWS has a whisper-quiet compressor that enables it to function at lower than 50 dB noise levels on the low setting.

Because this is a small dehumidifier, the fan is not a source of excess noise levels because the airflow of 20 Pint dehumidifier is comparatively lower than 50 Pint dehumidifier airflow; the noise levels of that don’t exceed 45 dB.

The reason why the MIDEA MAD35C1ZWS is so popular is that it’s pretty much universal. You can use it in the bedroom, living room, bathroom, crawl spaces, even in the basement.

The drainage type is standard manual empty-the-bucket kind with optional continuous gravity drainage via a 3/4 inch garden hose. The tank size is 0.8 gallons, however; this is not ideal but you have to take into account that smaller dehumidifiers have smaller tank sizes.

In short, MIDEA MAD35C1ZWS is the smallest quiet dehumidifier with Energy Star rating and extremely low noise levels that don’t even exceed 55 dB:

MIDEA MAD35C1ZWS Review

Pros
  • Smallest 20 Pint quiet dehumidifier with 49-51 dB noise levels
  • Airflow doesn’t significantly contribute to the noise levels; compressor is quiet
  • Most popular dehumidifier in 2021 in general
Cons
  • Bucket size is only 0.8 gallons
  • No built-in pump (anti-gravity drainage is not possible)

4. Honeywell TP70AWKN: Quietest Dehumidifier For Basement (Up to 52 dB)

Honeywell TP70AWKN: Quietest Dehumidifier For Basement (Up to 52 dB)
Noise Levels: Up to 52 dB
Dehum. Capacity: 50 Pint/day
Coverage: Up to 4,500 sq ft
Bucket Capacity: 14 inches
Drainage: Manual, Drain Hose
Energy Star Rating: Yes
Dimensions (HxWxD): 15.7″ x 12.4″ x 25.4″
Weight: 41.1 lbs
Price: $$$$
Rating: 4.8 out of 5 stars

Honeywell TP70AWKN is considered to be one of the best quiet dehumidifiers in general. Compared to the absolute quietest dehumidifier that produces 51 dB max noise levels, the 52 dB max noise levels of the Honeywell dehumidifier are as close to the most silent operation as it gets.

Honeywell has built an overall high-quality dehumidifier that is also quiet as a mouse. Because it’s so robust, has a high 50 Pint/day dehumidification capacity, and is quiet, it’s the quietest dehumidifier for the basement. The robust and reliable design will be able to withstand even the extremely high 80%-98% relative humidity levels that occur in the basement.

On top of that, Honeywell TP70AWKN is Energy Star rated and produces about 30% less electricity than comparable basement dehumidifiers

In short, Honeywell TP70AWKN is actually the best dehumidifier as far as reliability is concerned. It generates less than 53 dB of noise levels and has one of the most silent operations among all dehumidifiers in 2021:

Honeywell TP70AWKN Review

Pros
  • Best-made unit; reliable and robust
  • Very low noise levels; up to 52 dB
  • Perfect as a quiet dehumidifier for the basement; it can handle 80%-98% relative humidity levels at lower temperatures
  • Honeywell is known as a reliable producer
Cons
  • Doesn’t include the pump
  • Wifi and Alexa compatibility raises its price tag without the rise in capacity

If you have any additional questions about how silent dehumidifiers work, or would like to share your experience with any models, please do use the comment section.

Leave a comment