6 Best ALORAIR Dehumidifiers of 2026
We compared six ALORAIR dehumidifiers across crawl space, LGR and Wi-Fi models.
By Daniel Brooks
Updated October 28, 2026
ALORAIR is one of the best-known crawl space brands, with a range that runs from compact 70-pint units to large LGR machines, most backed by a 6-year limited warranty. Our list of the best ALORAIR dehumidifiers picks six models across the range.
To browse every model we cover, visit our Whole-House & Crawl Space Dehumidifiers page.
All Products Compared
| Product | Best For | Capacity | Coverage | Drainage | Notable |
|---|---|---|---|---|---|
| ALORAIR Sentinel HD55S Dehumidifier | Overall | 120 pints saturation, 55 PPD AHAM | Up to 1,300 sq ft | Gravity hose | Energy Star, metal case |
| ALORAIR Sentinel HS35 Dehumidifier | Compact | 70 pints saturation, 35 PPD AHAM | Up to 1,000 sq ft | 6.5 ft gravity hose | Manual knobs, 115 CFM |
| ALORAIR Sentinel HDi90 Dehumidifier | Large spaces | 198 pints saturation, 90 PPD AHAM | Up to 2,600 sq ft | Pump | Optional remote control |
| ALORAIR Storm 80X LGR Dehumidifier | LGR | 170 pints saturation, 80 PPD AHAM | Up to 2,100 sq ft | Pump | LGR, 200 CFM, wheels |
| ALORAIR Smart Wi-Fi 120 Pint Dehumidifier | Wi-Fi | 120 pints saturation, 55 PPD AHAM | Up to 1,300 sq ft | Pump and hose | Wi-Fi app, Energy Star |
| ALORAIR Sentinel Pro 35X Dehumidifier | Most Efficient | Pro 35X class | Homes and basements | Pump | Energy Star Most Efficient 2025 |
| Award | Product | WikiCooling Score About WikiCooling ScoreThe WikiCooling Score is our own rating from 0 to 10, based on the criteria described on our How We Review page. It reflects research, not laboratory measurement, and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | |
|---|---|---|---|
| Best Value |
ALORAIR Sentinel HD55S Dehumidifier
|
Buy | |
| Best Overall |
ALORAIR Sentinel HS35 Dehumidifier
|
Buy | |
ALORAIR Sentinel HDi90 Dehumidifier
|
Buy | ||
| Best Premium |
ALORAIR Storm 80X LGR Dehumidifier
|
Buy | |
ALORAIR Smart Wi-Fi 120 Pint Dehumidifier
|
Buy | ||
| Best Budget |
ALORAIR Sentinel Pro 35X Dehumidifier
|
Buy |
Top 3 ALORAIR Dehumidifiers Reviewed
#1 ALORAIR Sentinel HD55S Dehumidifier: Best Overall
Why We Picked It
ALORAIR’s Sentinel HD55S is the benchmark crawl space dehumidifier: ENERGY STAR certified, 55 PPD at AHAM and up to 120 pints a day at saturation, in a rugged metal case that drains automatically.
The HD55S is built for the conditions that ruin household dehumidifiers. It removes up to 120 pints a day at saturation, or 55 PPD under the AHAM test at 80 degrees F and 60% humidity, and ALORAIR rates it for spaces up to 1,300 sq ft. There is no tank: water leaves through the drain outlet, so it can run for months unattended. A MERV-1 filter protects the coil, auto defrost keeps it working in cool crawl spaces, and the metal housing stands up to dirt and moisture. The low, flat body fits between joists or on a vapor barrier.
Key Specifications
- Capacity: 120 pints at saturation, 55 PPD at AHAM
- Coverage: Up to 1,300 sq ft
- Drainage: Continuous gravity drain
- Certification: ENERGY STAR
- Defrost: Automatic
- Size and Weight: 19.2 x 12.2 x 13.3 inches, 41.7 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
It needs a floor drain or sump below it. If water has to go up and out, choose the HDi65S with a pump.
Best For
This dehumidifier is best for sealed crawl spaces and basements.
Check the current price and availability of the ALORAIR Sentinel HD55S Dehumidifier on Amazon.
Read our full ALORAIR Sentinel HD55S Dehumidifier review.
#2 ALORAIR Sentinel HS35 Dehumidifier: Best Compact
Why We Picked It
ALORAIR’s Sentinel HS35 is a compact 70-pint crawl space unit with simple manual knobs, 115 CFM of airflow and a 6.5 ft drain hose, sized for spaces up to 1,000 sq ft.
The HS35 is ALORAIR’s entry crawl space dehumidifier. It removes 35 PPD under AHAM conditions and up to 70 pints a day at saturation, moving 115 CFM of air through spaces up to 1,000 sq ft. The 6.5 ft hose drains continuously by gravity, so there is no tank to empty, and an ergonomic handle makes it easy to slide into place. Humidity is set with manual knobs, which some installers prefer because there is nothing to reprogram after an outage. Auto defrost keeps it running in cool conditions, and it carries ALORAIR’s 6-year limited warranty.
Key Specifications
- Capacity: 70 pints at saturation, 35 PPD at AHAM
- Coverage: Up to 1,000 sq ft
- Airflow: 115 CFM
- Drainage: 6.5 ft gravity hose
- Controls: Manual knobs
- Size and Weight: 15.35 x 11.2 x 11.4 inches, 37.8 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
Several brands sell a very similar 70-pint body. ALORAIR stands out for its warranty and support.
Best For
This dehumidifier is best for small crawl spaces and closets under stairs.
Check the current price and availability of the ALORAIR Sentinel HS35 Dehumidifier on Amazon.
Read our full ALORAIR Sentinel HS35 Dehumidifier review.
#3 ALORAIR Sentinel HDi90 Dehumidifier: Best High Capacity
Why We Picked It
ALORAIR’s Sentinel HDi90 removes up to 198 pints a day at saturation and 90 PPD at AHAM, with a heavy-duty condensate pump, for crawl spaces and basements up to 2,600 sq ft.
The HDi90 is the unit for large or very wet crawl spaces. It removes up to 198 pints a day at saturation and 90 PPD under AHAM conditions, covering up to 2,600 sq ft. A heavy-duty condensate pump pushes the large volume of water out continuously, and an optional remote control lets you monitor and adjust it from outside the crawl space. Despite the capacity, it stays fairly compact with carry handles, and it is backed by ALORAIR’s 6-year limited warranty.
Key Specifications
- Capacity: 198 pints at saturation, 90 PPD at AHAM
- Coverage: Up to 2,600 sq ft
- Drainage: Heavy-duty condensate pump
- Control: Optional remote
- Defrost: Automatic
- Size and Weight: 23.2 x 15.2 x 17.7 inches, 69.51 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
ALORAIR also sells a non-pump HD90 for spaces with a floor drain.
Best For
This dehumidifier is best for large crawl spaces and wet basements.
Check the current price and availability of the ALORAIR Sentinel HDi90 Dehumidifier on Amazon.
Read our full ALORAIR Sentinel HDi90 Dehumidifier review.
Other Models Worth Considering
ALORAIR Storm 80X LGR Dehumidifier. ALORAIR’s Storm 80X is an efficient LGR unit on wheels.
ALORAIR Smart Wi-Fi 120 Pint Dehumidifier. ALORAIR’s Smart Wi-Fi 120-pint unit adds app monitoring and a pump.
ALORAIR Sentinel Pro 35X Dehumidifier. ALORAIR’s Sentinel Pro 35X is certified ENERGY STAR Most Efficient 2025 and includes a pump.
What to Expect from ALORAIR Dehumidifiers
Crawl space and whole-house dehumidifiers are built to run for months without attention. There is no bucket: water leaves through a gravity hose or a built-in pump, the coils are protected against corrosion, and auto defrost keeps them working in cool, damp spaces where a household unit would ice up and stop.
For more options, see our guides to crawl space dehumidifiers and smart crawl space dehumidifiers. For single rooms, our portable compressor dehumidifiers guide covers bucket models. The product cards show the current price for each dehumidifier.
How to Choose ALORAIR Dehumidifiers
Compare AHAM Ratings, Not Saturation Numbers
Most listings quote two capacities. The big number is measured at saturation, around 90 degrees F and 90% humidity, conditions a crawl space rarely sees. The AHAM figure, measured at 80 degrees F and 60% humidity, is far more useful for comparing units, and it is usually about half the saturation number.
Plan the Drainage First
A gravity hose works when a floor drain, sump or exterior opening sits lower than the unit. If water has to go up and out, through a rim joist or to a basement sink, choose a model with a built-in condensate pump and check its lift height.
Measure the Access Opening
Crawl space doors and joist bays are tight. Measure the opening and the clearance before you buy, and look for low, flat bodies with handles. Some units can hang between joists to keep them off the ground.
Think About Monitoring
You rarely look inside a crawl space, so a way to check it helps. Options include Wi-Fi apps, wired remote panels you can mount outside the access door, and separate humidity sensors.
How We Evaluate ALORAIR Dehumidifiers
We rank dehumidifiers on manufacturer specifications and listing details: rated capacity and the conditions behind it, coverage, drainage, efficiency, build and warranty. We kept only new, in-stock units and left out renewed listings and bucket-style household models. For this list we picked one model per use case across the ALORAIR range.
Frequently Asked Questions
What size crawl space dehumidifier do I need?
For a sealed crawl space, a unit rated around 35 PPD at AHAM suits smaller homes and about 55 PPD larger ones. Wet or vented spaces need more.
Do I need a pump?
Only if there is no drain lower than the unit. Otherwise a gravity hose is simpler and has no pump to fail.
Is Wi-Fi worth it on a crawl space dehumidifier?
If the crawl space is hard to reach, yes. Alerts tell you about problems before mold does.
What humidity should a crawl space be?
Most experts aim for 45% to 60%. Below that wastes energy; above it invites mold and wood rot.
Final Verdict
The ALORAIR Sentinel HD55S Dehumidifier is the best ALORAIR dehumidifier for most crawl spaces. For smaller spaces, choose the ALORAIR Sentinel HS35 Dehumidifier, and for large or wet ones, the ALORAIR Sentinel HDi90 Dehumidifier.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.