10 Best Crawl Space Dehumidifiers
for November 2022

Crawl space humidity can cause mold, mildew, and fungus to grow, which can damage your home's foundation and walls. A dehumidifier can help keep the crawl space dry by extracting moisture from the air.

A dehumidifier works by absorbing moisture from the air and releasing it in the form of water. This dehumidifier has an adjustable humidistat that monitors humidity levels, which can be adjusted between 40 and 90 percent. The dehumidifier also has an adjustable air flow, which can be adjusted from 140 to 560 cubic feet per hour.

This dehumidifier is easy to install with a 6-foot hose and hose clamp, which attaches to a 3-inch drain. The dehumidifier has a 30-pint tank, and the tank capacity can be monitored using the digital readout. This dehumidifier is Energy Star rated and has an auto-shutoff after 9 hours.

The Different Guide has tested 100+ dehumidifiers in the past 10 years, including portable dehumidifiers, whole-house dehumidifiers, and crawl space dehumidifiers. We score the dehumidifiers for performance, efficiency, and ease of use. These are the best crawl space dehumidifiers of 2022.

Different Guide editors select recommendations independently. Purchases made through our links may earn us commissions.

1
9.5
SCORE
BaseAire AirWerx90X Energy Star Dehumidifier for Crawl Space Basement, 198 Pints Commercial Dehumidifier with Pump, 5 Years Warranty, Intelligent Humidity Control, Auto Shut off/Restart

BASEAIRE DRY YOUR CRAWL SPACE & BASEMENT BaseAire AirWerx90X Energy Star Dehumidifier for Crawl Space Basement

by BaseAire
What We like

The BaseAire airWerx90X dehumidifier does everything you need it to: remove moisture, add humidity, and hold humidity at reasonable levels.

2
9.5
SCORE
Aprilaire E80 Pro 80 Pint Dehumidifier for Crawl Spaces, Basements, Whole Homes, Commercial up to 4,400 sq. ft.

Aprilaire E80 Pro 80 Pint Dehumidifier for Crawl Spaces

by Research Products Corporation
What We like

The Aprilaire 80 pint dehumidifier removes 1,000 cubic feet of air per day, enough for an average 3,500 square foot home. Its design includes four casters so it can be easily moved into different spots. Moreover, its Energy Star rating means it uses less energy than comparable models.

3
9.4
SCORE
BASEAIRE 198 Pints Energy Star Crawl Space Commercial Dehumidifier, 5 Years Warranty, Large Industrial Water Damage Equipment for Basement, Garage and Job Sites, AirWerx 90

BASEAIRE DRY YOUR CRAWL SPACE & BASEMENT BASEAIRE 198 Pints Energy Star Crawl Space Commercial Dehumidifier

What We like

This smart dehumidifier will AUTO-STOP when the set humidity level has been met and AUTO RESTART when the room humidity raises up again or even after a power interruption. It shuts off the water supply automatically and melted the ice automatically. Dehumidifiers Remove excess moisture from the air, protecting your home. Excessive moisture in the home can result in unpleasant odors, damage to home fixtures, and cost the homeowner's money and time. The choice of an ENERGY STAR dehumidifier can deliver savings on energy bills without sacrificing performance, features, and comfort while protecting the environment by reducing greenhouse gas emissions.

4
9.1
SCORE
ALORAIR 180PPD Commercial Dehumidifier for Crawl Space & Basement, Wi-Fi APP Controls with Pump, Capacity up to 85 PPD at AHAM Condition, for Large Space, Job Sites, Yellow

ALORAIR 180PPD Commercial Dehumidifier for Crawl Space & Basement

by ALORAIR
What We like

The ALORAIR 180PPD commercial dehumidifier's pump is a great feature for keeping moisture levels down. But it's expensive and our testers weren't big fans of its interface, which is little more than on/off buttons.

5
8.7
SCORE
ALORAIR Commercial Dehumidifier 113 Pint, with drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, Compact, Portable, Auto Defrost, Memory Starting, 5 Years Warranty, Sentinel HD55

ALORAIR Commercial Dehumidifier 113 Pint

by ALORAIR
What We like

This dehumidifier is one in a million, well built and works with great efficiency. It removes 113 pints per day, and is very quiet. The cooling system works well, it dries all of the water out of the basement.

6
8.6
SCORE
ALORAIR Commercial Dehumidifier with Pump Drain Hose, 180 Pint Large Capacity Crawl Space Dehumidifier for Water Damage Restoration, Basements Warehouse & Job Sites, 5 Years Warranty, Red

ALORAIR Commercial Dehumidifier with Pump Drain Hose

by ALORAIR
What We like

This LGR dehumidifier with automatic pump gives you a great deal of flexibility in installation—the 2 pumping system gives you a variety of options to drain the condensate. The 180 pint capacity makes it perfect for basements and crawl spaces.

7
7.4
SCORE
BaseAire 113 Pint Portable Commercial Dehumidifier, for Any Water Damage Restoration Sites, Crawl Spaces, Basements, Compact, Portable, Auto Defrost, Memory Starting, 5 Years Warranty, AirWerx55

BASEAIRE DRY YOUR CRAWL SPACE & BASEMENT BaseAire 113 Pint Portable Commercial Dehumidifier

What We like

BaseAire's dehumidifier is the lightest, toughest, and most efficient portable dehumidifier we tested. Portable dehumidifiers work best of all when space is tight, and BaseAire's pint size makes it ideal for basement renovations, mold remediation, and water damage restoration.

8
7.2
SCORE
AlorAir Duct-able Version Basement/Crawl Space Dehumidifiers 198 PPD Commercial Industrial Dehumidifier with Pump & Drain Hose, Energy Star Listed, Auto Defrosting, 5 Years Warranty, Whole Homes

AlorAir Duct-able Version Basement/Crawl Space Dehumidifiers 198 PPD Commercial Industrial Dehumidifier with Pump & Drain Hose

by AlorAir
What We like

The AlorAir Dehumidifiers has an easy-to-use control panel and offers reliable and affordable dehumidifying function.

9
7.2
SCORE
ALORAIR Commercial Dehumidifier with Pump, Up to 180 PPD (Saturation), 85 PPD at AHAM, Memory Starting, 5 Years Warranty, LGR Dehumidifier for Flood Repair, Crawlspace and Basement Drying, Blue

ALORAIR Commercial Dehumidifier with Pump

What We like

The ALORAIR Commercial Dehumidifier has a more powerful motor than the most home units we tested. It and 180 pints of water a day Once fully set up, it dried out a huge room in an hour or less.

10
7.2
SCORE
BASEAIRE 220 Pints Crawl Space Commercial Dehumidifier with Pump, AirWerx100X Whole Homes Dehumidifier for Basements, up to 2,900 sq. ft. 5 Years Warranty, cETL, Water Damage Storage

BASEAIRE DRY YOUR CRAWL SPACE & BASEMENT BASEAIRE 220 Pints Crawl Space Commercial Dehumidifier with Pump

What We like

This crawl space dehumidifier offers easy operation with an automatic humidity control feature. The pump makes it easy to drain excess water from the unit. The dehumidifier's 220 pints of capacity allows it to remove moisture from a wide range of spaces.

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