The Best Dehumidifiers for Mold (2020 Reviews & Buyer’s Guide)

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Mold can be devastating for you and your home. It can compromise air quality leading to potential health problems, and cause irreversible damage to furniture and valuable in your home.

High humidity levels create the perfect environment for mold to grow, so if you are having problems with mold, you should seriously consider a dehumidifier.

However, it’s important to note that a dehumidifier won’t actually kill mold. It will help to prevent mold from growing and becoming a bigger problem, but you will still need to physically remove the mold.

In this guide, we’ll look through our recommended dehumifiers for mold, a buyer’s guide for choosing a dehumidifier, and frequently asked questions about dehumidifiers and mold.

Below you can see our top pick for the best dehumidfier for mold.


Best Overall

hOmeLabs HME020031N

hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier for Extra Large Rooms and Basements

The hOmelabs made it as our top pick for a couple of reasons. First, it has a continuous draining system which bypasses the tank. This is important because water tanks make for a great environment for mold to grow. Secondly, it offers a 2 year warranty which is longer than most alternatives.


Top 5 Dehumidifiers for Mold

Below you can find our recommendations for the best dehumidifiers for mold. You can compare the basic features or click on the dehumidifier model and skip to our full review.

Editor's PicksDehumidifierSizeWater TankDrainingBuy
Best for BasementshOmeLabs HME020031N70 pints1.8 gallonYesAmazon
Best for BathroomsRinKmo 30 Pint30 pints0.48 gallonYesAmazon
Best for Small RoomsEva-Dry Edv-11008 ounces16 ouncesNoAmazon
Best for Tiny SpacesEva-Dry Wireless MiniN/A6 ouncesNoAmazon
Best for Whole HouseAprilaire 1850 Pro95 pintsNoYesAmazon
Best Overall

1. hOmeLabs HME020031N

hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier for Extra Large Rooms and Basements

What We Like

  • Continuous draining: If you are having problems with mold, it’s a good idea to use a dehumidifier with continuous draining because water tanks can become a hotbed for mold. (The other advantage is that you don’t have to keep emptying the tank.) The hOmeLabs HME020031N has a contious draining option which completely bypasses the water tank (some don’t), making it a great choice for basements with mold.
  • Warranty: Like many appliances, dehumidifiers are notorious for breaking down. The hOmeLabs HME020031N has 2 year warranty (you can extend it be a further 6 months by registering online) which is more than most dehumidifiers which have a 1 year warranty.
  • Important features: The hOmeLabs HME020031N doesn’t have all the bells and whistles, but it does have the important features you like to see in a dehumidifier. A humidistat, auto-shutoff, auto-restart, and auto-defrost are all available with this dehumidifier. You can read more about what these features are further down the page.
  • Price: The hOmeLabs HME020031N is available at a very resonable price for what you get. It’s less expensive than many of it’s direct competitors but still includes all the features you need and a great warranty. Whilst the build quality may not be quite on the same level as more expensive options, it’s certainly isn’t a pooly built dehumidifier, and the warranty should give you peace of mind.
  • Sleek design: Of course, the functionality should be the most important factor when choosing an appliance like a dehumidifier, but it’s certainly a bonus when it has a sleek, modern design like the hOmeLabs HME020031N.

What We Don’t Like

  • Doesn’t include drain hose: Unfortunately, the hOmeLabs HME020031N doesn’t include a drain hose, so if you want to use that functionality, you’ll need to buy a separate hose. The good news is all you need is a 5/8” diameter garden hose with an internal threaded end.
  • Doesn’t include internal pump: The other downside is that this dehumidifier doesn’t have an internal pump. This means if you want to drain the hose out of somewhere higher than the level of the dehumidifier, you’ll need an external pump like the Little Giant. This isn’t necessarily a bad thing because internal pumps are usually not as good as external pumps anyway.

Best for Bathrooms

2. RinKmo 30 Pint

Rinkmo 30 Pint Dehumidifier for Home Basements Bedroom Garage, Safe Mid Size Portable...

What We Like

  • Continuous draining: The RinkMo dehumidifier allows you to use either a tank or a continuous draining system. It includes the draining hose too which is a nice addition considering other models often don’t.
  • Important features: Like the hOmelabs, the RinKmo has all the features you like to see in a dehumidifier, including a humidistat, auto-shutoff, auto-restart, and auto-defrost.
  • Compact size: The compact size of the RinKmo make it ideal if you want a portable dehumidifier or if you will be using it in a smaller room. It’s not as powerful as larger dehumidifiers, but it still pulls in a lot of water considering it’s size making it ideal for rooms like bathrooms.
  • Sleek design: The RinKmo has a modern, sleek design with relatively slim profile which will look good in any bathroom.

What We Don’t Like

  • Not as powerful as the hOmelabs: For larger rooms, the RinKmo won’t quite cut it in terms of power. Whilst it does a decent job for it’s size, you’ll need a more powerful unit like the hOmelabs to bring the humidity down to the recommend levels in a larger room.
  • Short(ish) warranty: The RinKmo has a 1 year warranty. Whilst this isn’t bad, it’s not as good as the 2 year warranty that comes with the hOmelabs.

Best for Small Rooms

3. Eva-Dry Edv-1100

Eva-dry Edv-1100 Electric Petite Dehumidifier, White

What We Like

  • Compact size: If you’re looking for a dehumidifier for very small rooms, the Eva-Dry Edv-1100 certainly fits the bill. It’s a good choice for RVs, boats and very small rooms, but it won’t be very effective in larger rooms.
  • Price: The Eva-Dry is very reasonably priced and won’t break the bank. However, it is worth considering it isn’t neccessarily the best value for money because a unit like the hOmelabs, although more expensive, is considerably more effective at removing water and has more features.
  • Easy to use: You simply plug it in and turn the dehumidifier on making it one of the simpliest models. However, this simplicicty is partly due to the fact that it lacks features which isn’t great.
  • Quiet: If noise is an issue for you then the Eva-Dry is a good option to consider as it is quite a bit quieter than the previous two dehumidifiers in our guide.

What We Don’t Like

  • Not very powerful: The Eva-Dry is a lot less effective at removing water than the hOmelabs and the RinKmo dehumidifiers. For very small rooms it will get the job done, but you will need something with a bit more power if you’re trying to prevent mold in larger rooms.
  • Lacks features: I mentioned earlier that this dehumidifier is super simple to use. But this is partly because it doesn’t have many features. It does have auto-shutoff so it will turn itself off when the tank is full, but there’s no humidistat, auto-restart, or auto-defrost.
  • No contiuous draining: The Eva-Dry doesn’t have a continuous draining option so you will need to rely on the tank to remove the water. However, I have noticed in the Amazon reviews that some people have modified the dehumidifier so it can drain. This is something to consider if your a DIY type of person.

Best for Tiny Spaces

4. Eva-Dry Wireless Mini

New and Improved Eva-dry E-500 Renewable Mini Dehumidifier

What We Like

  • Super small: The Eva-Dry Wireless Mini is a tiny dehumidifier that’s great for absorbing moisture in really small areas like closets of wardrobes.
  • Inexpensive: This dehumidifier is considerable cheaper than all of the other dehumidifiers on our list. You may find you need to buy a few of them, but even so, they won’t break the bank.
  • Completely silent: The Eva-Dry Wireless Mini works differently to other dehumidifiers. It absorbs moisture in small silica gel beads, and then you plug it into the main to dry it out before you can use it again. This means it’s completely silent when in operation.
  • Doesn’t require access to mains: You will need to plug it in to dry it out every week or so (they claim it lasts up to 30 days but most people find it needs recharging every week), but it doesn’t need to be plugged in when it’s in operation. This makes it a good choice when there isn’t acccess to the mains like in a closet.

What We Don’t Like

  • Only suitable for tiny spaces: The Eva-Dry Wireless Mini is only suitable for really small spaces due to its small size and unique method of absorbing moisture. If you have mold in anything other than a tiny space, you’ll need something more effective to bring down the humidity to the recommended levels. You’ll get the most out of this dehumidifier using it in places like safes, closets, and wardrobes.
  • Gets hot when plugged in: One thing to note is that although this unit is advertised as child and pet friendly, it can get quite warm when it is charging. Make sure children and pets can’t reach it and I would advise against leaving it unattended when plugged in.
  • Needs to be recharged: It will need recharging about once a week (they claim it lasts up to 30 days but most people find it needs recharging every week.) You recharge it by plugging it into a mains socket which dries out the silica gel beads. This takes around 12 hours so you might want to consider purchasing two of these so you always have one active. Since these units are so cheap and can last up to 10 years, even buying two units won’t break the bank.

Best for Whole House

5. Aprilaire 1850 Pro

Aprilaire - 1850Z 1850 Pro Dehumidifier, 95 Pint Commercial Dehumidifier for Crawl Spaces,...

What We Like

  • Very effective: The Aprilaire 1850 Pro has a very high capacity at 95 pints (130 pint model also available). This dehumidifier does a great job at removing humidity from your home.
  • Works with HVAC system: You can setup this dehumidifer to work with a HVAC system.
  • Can be used as standalone unit: If you don’t want to use the Aprilaire with a HVAC system, you can also use it as a standalone unit.
  • Warranty: The Aprilaire has the best warrant on our list at 5 years.
  • Important features: Although the Aprilaire doesn’t have a water tank (it will remove water too quickly for a water tank anyway), it does have all the other features you want to see in a dehumidifier including a humidistat, auto-shutoff, auto-restart, and auto-defrost.

What We Don’t Like

  • Expensive: The downside of the Aprilaire 1850 Pro is that it is considerably more expensive than the other options on our list. If you need to dehumidifier your whole house or a very large room, it’s a great choice. But for smaller rooms it will probably be overkill.

What to Look for in a Dehumidifier for Mold

Any dehumidifier will certainly help to prevent mold. However, there are a couple of things to look for that will make your life easier if you have a mold problem.

Continuous Drain Hose

There are two ways a dehumidifier can deal with the water it takes in. Most dehumidifiers have a tank that needs to be emptied regularly, but some units also have a continuous draining option.

Dehumidifier water tanks can be a hotbed for mold so it’s a good idea to choose a model with a continuous draining option.

Some units fill up the tank before the drain is put to use. This isn’t ideal because the tank will still fill up with water which will allow mold to grow. Other units like our top pick, the hOmeLabs HME020031N, bypass the tank when the drain is used so the tank won’t fill up with water.

Even with a dehumidifier with a continuous drain which bypasses the tank like hOmeLabs, you still want to make sure you regularly clean it (especially any part which gets wet) to prevent mold from thriving.

One thing to note is that most dehumidifiers (including the hOmelabs) rely on gravity for continuous draining. This means the dehumidifier needs to be elevated higher than the other end of the hose. If you would like to drain the dehumidifier above the height of the unit, an external pump like the Little Giant allows you to do this.

Easy to Clean Tank

If you choose a dehumidifier without a continuous drain hose, or you prefer to use the tank instead, you will need to clean it regularly to prevent mold from growing.

For this reason, it’s a good idea to choose a model which is easy to clean so you can keep on top of it and remove the mold before it becomes a problem.


Other Considerations When Choosing a Dehumidifier

Along with the factors to consider that for a dehumidifier specifically for mold, there are some more general considerations to consider too.

Size

The biggest defference between dehumidifiers is the size of the unit. The size is based on the amount of water the dehumidifier can absorb from the air per day under ideal conditions.

The most common sizes are 70 pints, 50 pints, and 30 pints. Manufactures usually include a guide for the size of room the dehumidifier is suitable for. However, you’re better off choosing the largest dehumidifier you can afford and doesn’t take up too much space in the room.

Manufacturers usually overeztimate the room size the dehumidifier is suitable for and a larger dehhumidifier has the advantage of dehumidifing the room more quickly than a smaller model.

And since a larger dehumidifier works more quickly, you don’t have to leave it on for as long which means they aren’t necessarily any less energy efficient.

Warranty

Dehumidifiers, like many appliances, are notorious for breaking down. Unfortunately, it seems to be the case that a small percentage of all dehumidifiers will develop problems at some point.

This is why it’s a good idea to factor in a good warranty that lasts for multiple years when choosing a dehumidifier.

Features

Some dehumidifiers only offer very basic functionality wheras others offer the full bells and whistles. Here are the key features to consider when choosing a dehumidifier:

  • Humidistat: A humidistat allows you to set the desired humidity level, and the dehumidifier will turn itself on and off to maintain that level. One thing to note is that the dehumidifier only knows the humidity level in the immediate area. We recommend placing a hygrometer elswhere in the room to give you a more accurate idea of your humidity levels.
  • Automatic shut-off: Automatic shutoff is a very important feature to look for, particularly if you use the tank rather than continuous draining. It will turn the dehumidifier off when the tank is full to prevent the tank from overflowing. This is super important if you have mold because that overflowing water will create a perfet environment for mold to grow.
  • Automatic restart: A dehumidifier with automatic restart will turn itself back on after a power outage. This is particularly important if you regualrly experience power outages. If you have a dehumidifier without this feature and have a power outage, by the time you manually turn the dehumidifier back on, the humidity levels could have risen and started to cause problems.
  • Automatic defrost: If you plan on using the dehumidifier in a colder climate, a unit with automatic defrost will automatically defrost the coils if the temperature drops too low.

Noise

Dehumidifiers can make quite a lot of noise. If it will be running in basement where the won’t be people around most of the time, this isn’t much of an issue. But if it will be used in a bedroom or anywhere else where you won’t want a lot of noise, look for a model with quieter operation.

It’s a good idea to check through user reviews to find out how people found the noise levels to be on a particular dehumidifier you are interested in.

Tank Size

We recommend using continuous draining if you’re looking for a dehumidifier for mold, but if you do need to use the tank, you need to consider the tank size.

Ideally you want a tank with a larger capacity so you don’t have to empty it as regualrly, but do take into consideration that a larger tank will mean the dehumidifier won’t be as portable and the tank will be heavier when it comes to emptying it.


FAQs

What’s the Ideal Humidity Level for Preventing Mold?

To prevent mold from growing, relative humidity levels should be below 60% and ideally between 30% and 50%.

Many dehumidifiers inlcude a hyrometer which displays humidity levels in the room. Whilst they are fine for smaller rooms, you may want to purchase a separate hygrometer (like this one from Amazon) and place it elsewhere in the room to give you a clearer picture of the humidity levels throughout the whole room.

Is a Dehumidifier the Best Solution for Mold?

If you have problems with mold, a dehumidifier will certianly help to prevent it from growing. However, a dehumidifier will not get rid of any existing mold. You will still need to physically get rid of the mold and you may need to call an expert for serious cases.

You can read more about dealing with mold at freshome.com.

Will a Dehumidifier Kill Mold?

No, a dehumidifier will not kill mold but it will help to prevent it from growing and causing further problems. You will still need to take other measures to remove the mold.

So, What Does a Dehumidifier Do for Mold?

Mold thrives in humid conditions. By using a dehumidifer to reduce relative humidity levels to between 30% and 50%, this creates an environment than mold doesn’t like, so it will prevent it from thriving.

How Do I Know If Humidity Levels Are Too High?

If you have mold, the your humidity levels are probably too high. Condensation on windows and glass surfaces is another sign of high humidity. However, the best way to check if your humidity levels are too high is to use a hygrometer like this one from Amazon. If the humidity level is abover 60%, you will benefit from using a dehumidifier.

Humidifier vs. Dehumidifier for Mold

Since mold thrives in high humidity environments, if you’re suffering from mold, you will deffinetely want to use a dehumidifier and NOT a humidifier.

Air Purifier vs. Dehumidifier for Mold

If you were to choose between these two options, a dehumidifier is the one to go for. However, using an airpurifier certainly won’t hurt and can help by removing airborne mold particles. So the best option would be to use both.

Will a Dehumidifier Spread or Cause Mold?

If you’re not careful then a humidifier can actually cause mold problems as well as fix them. The water tank in a dehumidifier is a perfect breading ground for mold, and any other part of the dehumidifier that gets wet can cause mold problems too.

This is why we recommend using a dehumidifier with a continuous hose system like the hOmeLabs HME020031N so you can avoid the water tank altogether.


Wrapping it Up

Hopefully, this guide has helped you decide on the best dehumidifier for mold in your home and ansered any questions you may have.

To sum it up:

If you have problems with mold in your home, a dehumidifier will help to prevent further mold from growing, but you will still need to physically remove any existing mold.

We advise looking for a dehumidifier with a continuous drain hose which bypasses the water tank which can be a hotbed for mold to grow. We also recommend looking for a dehumidifier with as long a warranty as possible because they are known to break down.

If you are able to reduce humidity levels to between 30% and 50%, this will create an environment in which mold will struggle to grow.

Resources


Last update on 2020-11-30 / Affiliate links / Images from Amazon Product Advertising API

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