Top Crawl Space Dehumidifiers in 2024 Reviewed

Crawl Space Dehumidifier

If you have a crawl space in your home, you understand that it can be the source of many problems resulting from poor quality of air. One of the main problems that homeowners struggle with is high humidity as a result of poor ventilation. This is where a crawl space dehumidifier becomes necessary.

6 Best Dehumidifiers for a Crawl Space

There are numerous dehumidifiers in the market and choosing the best gadget can be an arduous task. Here is a list of some of the best crawl space dehumidifiers to make your search easy.

Dri-Eaz F413 Revolution LGR Dehumidifier

4.2 out of 5 stars (4.2 / 5)

Dri-Eaz Revolution LGR Commercial Dehumidifier with Pump, Industrial, Compact, Crawlspace and BasementThe Dri-Eaz F413 Revolution LGR Dehumidifier is a robust gadget for your crawl space. It uses a refrigerant system and covers up to 7000 square feet and eliminates up to 80 pints of water from your home each day. This dehumidifier is compact and comes in a durable polyethylene frame.

The manufacturer gives a lifetime warranty to demonstrate how powerful the dehumidifier is. Just like any other good thing, this dehumidifier has a few cons with the man one being that it’s quite costly. However, when you compare the price to its features such as enhanced performance, and long term durability you can see why it’s expensive.

Customer Feedback

According to some customers who’ve already used this dehumidifier, it will leak at some point which may not be good news especially considering how costly it is.

All in all this dehumidifier is among the best crawl space dehumidifiers you’ll come across in the market today. Regardless of the initial investment costs, you are sure to enjoy continued reliability for many years to come. This dehumidifier is a good value for your money.

Santa Fe Advance100

3.5 out of 5 stars (3.5 / 5)

Santa Fe Advance100 Dehumidifier wDigital Control and Wi-Fi Pairing for Crawl Space and BasementsThe Santa Fe Advance100 is another popular dehumidifier which you can effectively use in your crawl space. This gadget covers up to 3400 square feet with the capability to eliminate up to 90 pints of water per day. This gadget is slightly expensive and s unable to operate when the temperatures are below 49 degrees.

This means that you’ll not use it during winter. However, it’s still a great gadget that features a MERV-13 filter which can eliminate microscopic air contaminants to ensure the air in your home is fresh and clean. If you’re looking for excellent performance, durability, and a guaranteed warranty, this gadget is perfect.

AlorAir Sentinel HD55 Crawlspace 55 Pint Dehumidifier

4.2 out of 5 stars (4.2 / 5)

AlorAir BasementCrawl space Dehumidifiers Removal 120 PPDThe AlorAir Sentinel HD55 Crawlspace 55 Pint Dehumidifier is ideal if you’re looking for the perfect dehumidifier for commercial use. It features an energy star rating which is enough to display how robust it is. Apart from using it in your crawl space, you can also use it in your office, warehouse, shop, or even apartment.

This dehumidifier covers up to 1300 square feet area. If you’re looking for the ideal solution to eliminate mold, corrosion, strong odor or even mildew infestation this gadget will come in handy. This dehumidifier features a great control system which includes a timer, water protection, and an automatic humidistat.

Dri Eaz F515 PHD 200 Compact 75 Pint Crawl space Dehumidifier

4 out of 5 stars (4 / 5)

Dri-Eaz PHD 200 Commercial Dehumidifier with Pump, Crawl Space and Basement DryingIf you have a big crawl space, you’ll need a robust dehumidifier to cover the entire space. The Dri Eaz F515 PHD 200 Compact 75 Pint Crawl space Dehumidifier is capable of pumping out up to 75 pints of water in the air every day. This dehumidifier features two operating modes; the continuous and humidistat operation. The former mode operates continuously in one power setting until you change it.

This is the best mode when you need to reduce the humidity levels fast with zero downtime. The latter operates by accelerating the removal of moisture. This mode maintains a premeditated humidity level and changes its functionality depending on the current humidity levels.

If you’re looking for an effective and efficient dehumidifier for your crawl space, this gadget is ideal.

Ivation 70 Pint Energy Star Dehumidifier

4 out of 5 stars (4 / 5)

Ivation 70 Pint Energy Star Dehumidifier with Pump, Large Capacity CompressorThe Ivation 70 Pint Energy Star Dehumidifier is specially designed to appropriately fit well in your home and the crawl space area.

One of the main benefits of using this gadget is its portability. You can easily move it from one room to the other depending on your needs. This dehumidifier is robust and plays a major role in eliminating allergens, mildew, mold, dust, and odor from your home.

With the ability to cover up to 4500 square feet, this dehumidifier comes with a hose connector, a programmable humidistat, an auto-restart function, and an auto shut off option. Further, it features an easy to use and bright LED display. While it may not be voted as the most silent gadget in the market it’s worth your investment.

Aprilaire 1830 Crawl Space Dehumidifier

4.1 out of 5 stars (4.1 / 5)

Aprilaire 1830 Pro Basement Dehumidifier, 70 Pint Commercial DehumidifierThe Aprilaire 1830 is a popular crawl space dehumidifier that you can use in various other rooms in your home. This dehumidifier covers up to 3800 square feet and is capable of eliminating up to 70 pints of water from the air each day.

This gadget is cheaper than many of the crawl space dehumidifiers on the market today even though it’s still slightly expensive. While this dehumidifier is quite robust in terms of performance, it has some flaws with one of the main ones being the fact that it can’t operate in temperatures below 50 degrees.

Not Ideal for use in Winter

You may want to consider another model if you’re specifically looking for a dehumidifier for use during winter. Further, this gadget has been said to be loud which many customers may find uncomfortable and finding its spare parts can be a difficult task. Still, this dehumidifier redeems itself in terms of high-quality development and solid performance. What’s more, it features an automatic defrost control to eradicate ice build-up.

What Problems Are Caused by High Humidity?

Increased humidity from your crawl space can have various consequences which include; pest and mold infestation, structural damage, allergy triggers, and strong unpleasant odors. To avoid these problems, you should take proper care of your crawl space to control the moisture problems.

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Should I put a Dehumidifier in my Crawl Space?

If you live in restricted places with insufficient ventilation or areas with high humidity, having a dehumidifier can be necessary to help prevent allergens such as mold, dust mites, and mildew infestation by minimizing the humidity levels. Dehumidifiers can effectively reduce respiratory and skin irritation allowing you to breathe easily while saving energy and safeguarding the structural integrity of your building.

Why Use a Crawl Space Dehumidifier?

There are numerous reasons why you should consider having a crawl space dehumidifier.

Enhances Health

When you install a dehumidifier inside your basement or crawl space, it improves the quality of air in your home. As a result, you and your loved ones will inhale fresh and uncontaminated air which plays an important role in improving your overall health. If you notice extreme humidity in your home, you need to take the necessary measures to control the situation before your home becomes infested by harmful allergens and other pollutants. By improving the quality of air in your home, you help reduce various symptoms such as eye irritation, allergic reactions, respiratory complications, and headaches.

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Keeping Pests at Bay

Using a crawl space dehumidifier helps you regulate the amount of moisture in your basement area. This comes in handy to eliminate anything that can attract pests in your crawl space.

Safeguards the Structural Integrity of Your House

When the humidity levels in your crawl space surpass 70%, chances there’ll be condensation which means that the wooden pieces of your home will be susceptible to rotting. Wood rot happens when there’s up to 28% moisture content in the air, a situation which happens when wood encounters liquid water. Once the wood in your crawl space is damaged, it’ll no longer be robust enough to sufficiently support your home and this can lead to adverse damages whose repairs can be expensive.

Improves the Comfort of Your Living Area

High humidity levels in your home can harm your comfort level. For instance, you or your loved ones may experience a feeling of excess heat and stickiness. If you have an air conditioning system to eliminate humidity, you may realize that your indoor air could be clammy and cold.

These problems can be easily eliminated by using a dehumidifier in the crawl space. This gadget helps regulate the humidity levels inside your entire home to increase your comfort levels. With a dehumidifier, you’ll still be comfortable in your home even during high temperatures and this helps you save on energy costs.

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Proper use of Energy

If you regularly use your air conditioner to eliminate excess humidity from your home, you end up spending more on energy costs. However, by using a dehumidifier in your basement or crawl space area, you are assured of maintaining comfortable humidity levels within or even below the recommended levels of 60% throughout all seasons.

What is the proper Humidity for a Crawl Space?

As we’ve seen above, regulating moisture plays a huge role in preventing mold and infestation and wood rot. You can achieve this by maintaining the recommended relative humidity levels in your crawl space. When warm air penetrates through your crawl space, it undergoes cooling and this can increase the relative humidity. It’s this high humidity that causes the aforementioned problems.

For mold to grow, it’ll need at least 70% relative humidity. However, there are some mold types that grow under lower humidity levels. Monitoring and controlling the humidity in your crawl space is necessary. You should strive to maintain at least 55% relative humidity in your home throughout the year to stay safe.


Are you looking for an effective crawl space dehumidifier? You can choose one from this list of tried and tested dehumidifiers.

My name is Isabel and welcome to Blooming Air I created Blooming Air to be a place where homeowners can keep their homes healthy for them and their families with high-quality air units.