ALORAIR 120 Pints Commercial Dehumidifier for Crawl Spaces & Basements with Drain Hose, Compact Dehumidifiers for Home and Industry Water Damage, Auto Defrost, 5-Year Quality Coverage
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This item is eligible for return within 30 days of receipt
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Availability:
In Stock.
Arrives
Oct 21 – Oct 22
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Color: white
Features
- Commercial Dehumidification Enhancement: AlorAir crawl space dehumidifier HD 55 has excellent dehumidification capability. Remove 55 pints per day under AHAM conditions and 120 pints at saturation, up to 1,300 Sq. Ft. , there is also an automatic defrost function.
- Convenient Gravity Drainage System: This basement dehumidifier has a gravity drainage system. Gravity drainage systems do not require additional electric drive, nor do they require manual intervention, and are safer and more reliable during operation, reducing the failure rate. The dehumidifier also has adjustable feet made of rubber to prevent scratches and reduces noise by 40%.
- Lightweight and Compact Design: Easily integrated into any home environment, this dehumidifier weighs just 44 pounds and measures 19.2"D x 12.2"W x 13.3"H, taking up no space and adding convenience to your living space while enjoying efficient dehumidification.
- Advanced Technology and Wide Range of Applications: This dehumidifier features a rare earth alloy tube evaporator, anti-corrosion technology, greatly improves coil life and heat transfer, is designed for reliable operation in harsh environments such as basements and commercial environments, and is also ideal for crawl spaces, kitchens, bathrooms, living rooms, closets.
- Choose AlorAir HD55 Crawl Space Dehumidifier with Confidence: Every AlorAir dehumidifier comes with a 5-year limited service with a professional customer support team to solve any problems . You can rely on us for reliable products and support.
- Kindly Note: To qualify for the unchargeable filters, add both the dehumidifier and the filter to your cart. The filter will not be charged at checkout. Please refer to the product details page for methods.
Brand: ALORAIR
Floor Area: 1300 Square Feet
Color: white
Special Feature: Continuous Draining
Capacity: 120 Pints
Tank Volume: 120 Pints
Product Dimensions: 19.2"D x 12.2"W x 13.3"H
Material: Alloy Steel
Model Name: Sentinel HD55
Wattage: 471.5 Watt-hours
Brand: ALORAIR
Floor Area: 1300 Square Feet
Color: white
Special Feature: Continuous Draining
Capacity: 120 Pints
Tank Volume: 120 Pints
Product Dimensions: 19.2"D x 12.2"W x 13.3"H
Material: Alloy Steel
Model Name: Sentinel HD55
Wattage: 471.5 Watt-hours
Operation Mode: Automatic
Dehumidification Capacity: 55 Pints per Day
Manufacturer: ALORAIR
UPC: 702367601141
Manufacture Year: 2021
Item Weight: 55.9 pounds
Item model number: Sentinel HD55
Date First Available: October 11, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Oct 21 – Oct 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Blue
This is a workhorse, I use it in a 1400+ square foot crawlspace with only about 30 inches headroom. It easily dries mine down to 45% relative humidity, and uses less electricity than the big box store brand I replaced. Heftier, quieter, expect it to be more durable, more expensive but better long term value.
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Reviewed in the United States on May 4, 2025 by Dan55
Color: Blue
My basement is humid. Humid enough that drips form on the air conditioning vents in summer. This blue box brought the humidity down a solid 40% and holding. Built like a tank and works very well. You DO notice it, I wouldn't call it quiet, but it's not obnoxious either.
Reviewed in the United States on May 7, 2025 by Middle-aged-Husband
Color: Blue
Bought to replace dehumidifier in crawl space. Was much cheaper than the dehumidifier we had put in 10 years ago and working just as well or even better.
Reviewed in the United States on July 6, 2025 by Stephanie C.
Color: Blue
We’re happy with our dehumidifier, however we encountered a mechanical issue that was identified with the help of customer support as a malfunctioning motherboard. After confirming I was willing to replace it myself, the new motherboard arrived within two days. Replacement was easy with the YouTube video.
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Reviewed in the United States on March 27, 2025 by Christopher V Ellis
Color: Blue
I have a shallow/short crawl space (think 22'-24' inches max height) under a 1950's single story ranch home in Texas. I was on the fence about which route to go to address moisture but ended up at partial encapsulation and adding (this) dehumidifier. I say partial because I haven't insulated the walls yet and holy moly this has been a labor intensive journey that I was not willing to pay $15-$20K for. The labor is where the cost is at and this has tested my resolve. I went with this one(HD55) because there was no condensate pump which seem to fail well before the units do based on hours of reading reviews. In March I paid right at $500 after taxes (I've seen the price jump a bit now). I've added a VCMA-15 Little Giant stand alone pump that feeds into my HVAC condensate drain line, about a 9 foot run which has given me no issues and which adds more reliability. I've added a water alarm in the pan I keep the pump in and the dehumidifier sits about 8 inches above to gravity feed into the pump. I ran a dedicated 20A duplex outlet into my space to feed the unit and pump. I have two Govee smart plugs that connect to wifi and tell me the energy use of each and that I can remotely control in the event of failure. I have a tight opening that I didn't care to enlarge at 12 ¼ x 16 inches, this unit fit perfectly through it. It's absolutely miserable to crawl into and work down there but man, the savings and feeling of doing it yourself (clearly I don't value my time). But again, I'm not paying 5 figures on something I can do, I'll spend it elsewhere. My original crawl was a dirt floor and 5 foundation/perimeter vents with a decimated 6 mil barrier covering about 25% of the floor. That had the humidity at 99% in the crawl space in the summer and not too much better in the winter. I was getting ridiculously high humidity inside the house and the wood moisture readings from the joists were unacceptable. Building science has changed significantly since my home was built, yours too. It was due time to address the moisture. This unit became a necessity. I added a perimeter drain in my backyard (you need to address where the water is coming from first). I sealed the vents, I laid down a 10 mil vapor barrier and wrapped all of the 25 pillars (miserable work). After sealing up about 95% and leaving room along the walls for insulation I added this (the HD55). After letting it run for 3 days the humidity is now at 56% (i have the unit set at 50%) and it has run the entire time (which I completely understand and don't fault it for doing so). I have the humidity monitored by wifi Govee sensors that I placed down there 6 months ago, they're more accurate than the unit's internal humidistat but within an acceptable margin. This unit has been a workhorse so far. I am hesitant to give it five stars off the bat and leave y'all feeling like this is the best because of the other reviews regarding longevity but it has been a five-star experience in the time I've owned it. I've relied on the reviews others have left here so it's only fair to do my part. I will update this accordingly. I have'nt finalized the placement yet. I have it in a central location without the ducting (be aware the manufacturer specifies only 6 foot of ducting may be added), so I've held off thus far and it seems convectively fine where it is at it's current angle. Given the headroom I have I was initially going to mount it with 3/8 threaded rod with horizontal brackets that accept all thread but for now I have it 8-9 inches up on a leveled stack of insulation board I cut to fit the width/length of the unit, there are zero stability concerns and it sits plum level. If you are here I'd imagine you are facing high humidity somewhere in your home and you are going to do the DIY route - I admire that and have chosen the same. That said - would an April air unit have performed better, probably but not by much. But they have their limitations too and suffer all of the same reliability issues, probably at less frequency but I couldn't justify the $1,700 upfront cost. I may reevaluate my stance on that after the peak of this summer or the next. But for now, this unit has proven to be more than capable of a tight/shallow 1,600 foot crawl space at removing gallons of water in the air. Quite amazing when I think about it more. Would I like more features and an included remote, of course. But the $100 they charge for the remote is absolute bull 5hi7. A smart plug and wifi hygrometer is the same and less expensive. But at this price point, I am pleasantly happy, so far. The unit seems well put together and fits into my opening. It is a slight hum that you'll barely hear above and soon not notice at all. Best of luck on your moisture removal journey. Ultimately, if I pay hundreds for anything, I expect it to last - you and this company will hear about it if it doesn't. But so far I am content and imagine you will be too. I just checked on the unit and didn't bring my phone down to take pics but I'll upload some later of the actual unit. I did add the "results" from the hygrometer and a pic to show you the constraints. Regarding efficiency I've uploaded a pic from the smart plug showing the electrical use - it'll end up being about $20 a month if it works as much as it does daily (it won't have to maintain that usage 24/7) but I am showing you the peak.
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Reviewed in the United States on April 8, 2024 by Erik in Texas Erik in Texas
Color: Blue
Update: This was a powerful dehumidifier for my small rv for 3 summers, then it got less powerful. It used to easily take the humidity to under 40% but was now struggling to hold 50%, and not cycling. It was on all the time. As stated in my original review, customer service sent me a new sensor and main board. Looked good at first, but ultimately didn't help. In the 2-1/2 months it took for this (not their fault - I was busy) the unit degraded significantly more and now can barely hold 60%. It was not an electronics problem. There used to be a tiny stream of water coming out of it when new and now it's a drop every 3 seconds. My conclusion (and theirs also) was a loss of refrigerant. A leak. Very likely leaking since it was originally charged. It has been well handled, kept level at all times during deployment, handling, and storage, left for 24 hours before turning on after moving, and doesn't have a scratch on it. As others have noted, they said I could ship it to them and they would repair it free, but I have to pay shipping both ways. At 44 pounds this is quite an expense at consumer rates. Otherwise, I could buy a new one from them for $450. No way. The replacement will leak after 3 seasons and I don't want to pay $150/summer for dehumidifying my rv when it's parked (I use a small heater the other 3 seasons). I feel sorry for the company as they really tried in good faith to help me fix it, but the product is no good. It leaks. Any sealed heat transfer system that leaks so soon without being abused is junk. I have a 40 year old refrigerator which has been handled roughly (in the shop) that still runs perfectly and has been running every day of those 40 years. The one in my home is 25 years old, still running perfectly. Buy at your own peril. I'm going to replace it with a cheap Walmart unit, and perhaps someday I'll address the plumbing on this thing in the future. I may be able to bring it back to life and have it recharged (if the charge ports are compatible). My advice - either get a cheapo unit and plan on replacement, or spend a couple hundred more for a known quality unit, preferably one not made in China. Original review: I use this to keep the moisture down in my rv. I live in the pacific northwest and during the non winter seasons it can get humid. It rains a lot here. Before I deployed this unit my rv would get moldy inside in a matter of a few weeks. One time I found an inch of white mold on my steering wheel. Yuk! After spending a lot of effort (and a lot of white vinegar) getting rid of the mold I bought this and there has been no problem since. It's much better than a house unit because it can discharge water out a hose to the outside. Compared to what this is made for, my application is light duty. After 3 years the humidity no longer matched my humidity gauge. It was off by 15%. Customer service helped me trouble shoot the problem, which turned out to be the humidity sensor. They sent me a new one free, but it turned out to be incompatible as it was a newer design and it gave an error code of E1. When I reported that, they scrounged an old design sensor and sent me that, as well as a new main board to match the new sensor. Free. Although the manual doesn't contain the error codes or much in the way of trouble shooting, they have quite a library of utube videos for reference. Combine those with TOP NOTCH customer service and I would not hesitate to buy this unit again. Replacing modules and filters is very easy requiring only a screwdriver and needle nose pliers. I highly recommend.
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Reviewed in the United States on August 30, 2024 by M. Schimmelman
Color: Blue
The unit was installed in the crawl space and it worked well for almost 2 years (model HD55, 113 pint). Then it started to leak from underneath. Then I called Customer Service and they helped me very quickly. They sent a new water tray which I was able to replace myself (there is a Youtube video that explains how step by step). Total process to me about 1 hour. The dehumidifier has been working well for about a week. Leak issue resolved.
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Reviewed in the United States on June 13, 2025 by Oscar T Bravo