Top 5 Ranked Products
We analyzed millions of Amazon products to handpick the top recommendations just for you.

#1 Ranked
ALORAIR Crawl Space Dehumidifiers 120 PPD Moisture Removal, Energy Star Certified Crawlspace Dehumidifiers Commercial Dehumidifier for Basement, Auto Defrost, cETL Listed
Price: $648.66
Rating: ★★★★★
ASIN: B01LWA8J37
Score: 94%
Overview:
The ALORAIR Crawl Space Dehumidifier is a robust and energy-efficient solution designed for moisture removal in various settings, including basements, crawl spaces, and commercial areas. With an impressive moisture removal capacity of 120 pints at saturation and 55 pints per day at AHAM conditions, it effectively addresses humidity issues in spaces up to 1,300 square feet. Its Energy Star certification ensures that it operates with minimal energy consumption, making it a cost-effective choice for long-term use. The unit also features an automatic defrosting system that allows it to function efficiently even in low temperatures, enhancing its reliability during colder months.
The dehumidifier is built with advanced internal corrosion protection, which extends the lifespan of the coils and minimizes maintenance concerns. Its compact design and ergonomic handle make it user-friendly and easy to transport. While it boasts many modern features tailored for the contemporary consumer, potential buyers should consider specific limitations that may affect their purchasing decision.
Pros:
- Energy Efficiency: Energy Star certified, reducing energy bills while maintaining effective moisture removal.
- Automatic Defrost: Operates efficiently in low temperatures, preventing frost build-up and unnecessary downtime.
- Corrosion Protection: Advanced technology minimizes coil corrosion, enhancing durability and performance.
Cons:
- Limited Coverage Area: While suitable for many spaces, it may not be adequate for larger commercial environments exceeding 1,300 sq. ft.
- Additional Filter Cost: Filters must be added to the cart separately to qualify for free shipping, which may be inconvenient for some users.

#2 Ranked
ALORAIR 120 PPD Commercial Dehumidifier, with Drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, cETL Listed, Compact, Auto Defrost Crawlspaces Dehumidifiers, Gold
Price: $648.66
Rating: ★★★★☆
ASIN: B094C9H51K
Score: 83%
Overview:
The ALORAIR 120 PPD Commercial Dehumidifier is designed for efficient moisture control in various settings such as crawl spaces, basements, and industrial areas. With the capability to remove 120 pints of moisture per day at saturation and 55 pints at AHAM, it effectively addresses humidity issues over spaces up to 1,300 square feet. Its durable metal casing ensures longevity, while the automatic drainage feature eliminates the need for manual water removal, making it a practical choice for commercial use.
Additionally, the dehumidifier boasts an automatic defrost system that allows operation in low temperatures, enhancing its versatility. The inclusion of a MERV-1 filter protects internal components and helps maintain air quality. Designed with user convenience in mind, it features an ergonomic handle for easy mobility and is compact enough to fit in tight spaces. Overall, this unit is engineered for modern consumers seeking reliable moisture management solutions.
Pros:
- High Capacity: Removes up to 120 pints of moisture per day, suitable for large areas.
- Automatic Drainage: Eliminates the need for manual water removal, enhancing convenience.
- Durable Design: Metal outer casing ensures long-term use in rugged conditions.
Cons:
- Limited Filter Type: MERV-1 filter may not be sufficient for those needing advanced air purification.
- Potential Noise: Commercial dehumidifiers can be noisier than residential models, which may be a consideration for sensitive environments.

#3 Ranked
Moiswell 145 Pint Commercial Dehumidifier with Drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, Large Capacity, Compact, Portable, Auto Defrost, Memory Starting
Price: $599.99
Rating: ★★★★☆
ASIN: B0BW45YBQQ
Score: 82%
Overview:
The Moiswell 145 Pint Commercial Dehumidifier is a robust solution designed specifically for crawl spaces, basements, and industrial settings that require effective moisture control. Its compact dimensions allow it to fit into tight spaces, making it ideal for optimizing air quality in confined areas. With an impressive moisture removal capacity of up to 145 pints per day and Energy Star certification, this unit combines high performance with energy efficiency, catering to large spaces of up to 6,000 square feet. The user-friendly features, such as auto cycling and a 24-hour timer, enhance its operational convenience.
This dehumidifier is not only functional but also aesthetically pleasing, featuring a contemporary design that fits well in various environments. Its sturdy construction ensures durability, making it a reliable choice for ongoing moisture management. Additional features like auto defrost and auto restart after power outages further enhance its usability, ensuring that it operates effectively even in challenging conditions. Overall, the Moiswell dehumidifier is well-suited for both residential and commercial applications where moisture control is critical.
Pros:
- Compact Design: Fits easily in tight spaces, making it ideal for crawl spaces and basements.
- High Moisture Removal: Capable of removing up to 145 pints of moisture per day, effective for large areas.
- Energy Efficient: Energy Star certified, ensuring lower energy consumption while providing high performance.
Cons:
- Initial Cost: Higher upfront investment compared to smaller, less powerful dehumidifiers.
- Noise Level: Potential for noise during operation, which may be a concern in quiet environments.

#4 Ranked
ALORAIR Commercial Dehumidifier 113 Pint, with Drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, Compact, Portable, Auto Defrost, Sentinel HD55
Price: $587.45
Rating: ★★★★☆
ASIN: B08N6C4GPP
Score: 80%
Overview:
The ALORAIR Commercial Dehumidifier HD55 is a robust unit designed for effective moisture control in crawl spaces, basements, and industrial environments. With a capacity to remove 113 pints of moisture per day at saturation and 53 pints at AHAM, it is well-suited for areas up to 1,200 sq. ft. The dehumidifier features a durable metal casing and an automatic drainage system, eliminating the need for frequent manual water removal. Its compact design, auto defrost capability, and ergonomic handle provide convenience and portability, making it an ideal choice for commercial and residential applications.
The unit's auto defrost system allows it to operate efficiently in low temperatures, down to 36°F, without interruptions for defrosting. This feature not only saves energy but also extends the device's lifespan. Additionally, the MERV-1 filter helps keep internal components clean, enhancing performance. However, the lack of user reviews may raise concerns regarding its long-term reliability and customer satisfaction.
Pros:
- High Moisture Removal Capacity: Effectively removes up to 113 pints of moisture, suitable for large areas.
- Automatic Drainage System: Eliminates the need for manual water removal, enhancing convenience.
- Durable Construction: Metal outer casing ensures longevity and withstands rugged conditions.
Cons:
- Limited User Feedback: Absence of reviews may indicate uncertainty about performance and reliability.
- Higher Initial Cost: Commercial-grade features may come at a premium price compared to residential units.

#5 Ranked
ALORAIR LGR Commercial Dehumidifier with Pump Drain Hose, 180 Pint Large Capacity Crawl Space Dehumidifier for Water Damage Restoration, Basements Warehouse & Job Sites, 5 Years Limited Warranty, Red
Price: $799.11
Rating: ★★★★☆
ASIN: B07P98YKDW
Score: 85%
Overview:
The ALORAIR LGR Commercial Dehumidifier is a robust solution designed for high-capacity moisture removal in large spaces, making it ideal for water damage restoration, basements, and crawl spaces. With a powerful airflow of 210 CFM, it can extract up to 180 pints of moisture daily, making it efficient for environments with high humidity levels. Its compact design allows it to fit into tight areas, and the built-in pump drainage system ensures easy management of collected water, enhancing its usability in various settings.
The unit is user-friendly, featuring a plug-and-go operation that simplifies setup and maintenance. The automatic functions, such as auto restart and defrost, minimize the need for constant monitoring, which is particularly beneficial in commercial applications. Additionally, the 5-year limited warranty underscores the manufacturer's confidence in the product's durability and reliability, offering peace of mind to users.
Pros:
- High Capacity: Removes up to 180 pints of moisture daily, suitable for large spaces.
- Compact Design: Easily fits in confined areas, ideal for crawl spaces and tight basements.
- Automatic Drainage: Built-in pump allows for hassle-free water drainage with a long hose.
Cons:
- Noise Level: May be louder than some residential models, which can be disruptive in quiet environments.
- Defrost Cycle: Temporary reduction in moisture removal during defrosting may affect efficiency.
- Weight: At 22.8 lbs, it may be cumbersome for some users to move without assistance.
Product Information & Tips
Overview
Dehumidifiers are essential for maintaining optimal humidity levels in crawl spaces, which can often become damp and prone to mold growth. A suitable dehumidifier can help prevent structural damage, improve air quality, and protect stored items from moisture-related issues. As such, selecting the best dehumidifier for a crawl space involves understanding specific features and functionality that cater to the unique challenges of these areas.
When searching for the best dehumidifier for a crawl space, consumers should consider factors such as capacity, energy efficiency, noise levels, portability, and durability. Each of these aspects plays a crucial role in ensuring that the dehumidifier operates effectively and meets the specific needs of the environment it is intended for.
Key Criteria
1. Capacity:
- The capacity, measured in pints per day, indicates how much moisture the unit can remove from the air. A higher capacity is essential for crawl spaces that are larger or have severe moisture issues.
2. Energy Efficiency:
- Energy-efficient models save on electricity bills and reduce environmental impact. Look for units with the Energy Star label to ensure they meet efficiency standards.
3. Noise Levels:
- Since crawl spaces are often located near living areas, choosing a dehumidifier with low operational noise is important to maintain a comfortable living environment.
4. Portability:
- A portable dehumidifier allows for easy relocation within the crawl space or to other areas of the home. This flexibility can be crucial for targeting moisture hotspots effectively.
5. Durability and Build Quality:
- Crawl spaces can be harsh environments with temperature fluctuations and potential exposure to water. A durable unit with a robust build can withstand these conditions and provide long-term performance.
Frequently Asked Questions
Q1: What size dehumidifier do I need for my crawl space?
A1: The size of the dehumidifier needed depends on the crawl space's square footage and moisture levels. A general guideline is to choose a unit that can remove 10 pints of moisture for every 1,000 square feet.
Q2: How often should I run the dehumidifier in my crawl space?
A2: It is recommended to run the dehumidifier continuously, especially during humid months, to maintain optimal humidity levels (ideally between 30-50%).
Q3: Can I install a dehumidifier myself?
A3: Many portable dehumidifiers are easy to set up and can be installed without professional help. However, for whole-home systems or complex installations, hiring a professional may be advisable.
Q4: Do dehumidifiers require maintenance?
A4: Yes, dehumidifiers require regular maintenance, including emptying the water tank (if not using a continuous drain option) and cleaning the filter to ensure efficient operation.
Q5: Will a dehumidifier help with mold issues in my crawl space?
A5: Yes, a dehumidifier can significantly reduce humidity levels, which helps prevent mold growth. However, addressing any existing mold issues may require additional remediation steps.
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