AlorAir Commercial Dehumidifier 113 PPD, with Drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, Compact, Portable, Auto Defrost, Memory Starting, 5 Years Warranty, Sentinel HD55

Model : AlorAir® Sentinel HD55(Blue)

4.8 Average

$587.48 List Price: $1,200.00


If you want a better dehumidifier for less money, choose the HD55(Blue) for its great value. This Commerical Dehumidifier can remove 113 Pints at saturation, up to 1,200 Sq. Ft, lowering the humidity to a comfortable level in a short period.

Highlights: 5 Years Warranty/ MERV-8 FilterAutomatic Defrost/ cETL certified/ Optional Remote Control

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Product Overview

AlorAir Sentinel HD55 Conventional Dehumidifier (Blue)
This particular unit is considered one of the most chosen types of dehumidifiers for basements and crawl spaces. It is designed to effectively extract all excess moisture from the air to make it inhospitable for harmful entities such as mosquitoes to thrive and bring harm to your family. Moreover, by drying your chosen area, you can be sure to protect your valuables from being destructed by molds.


· Ultra-compact design with super performance
· Adjustable foot pad and portable handle to transport and install easily
· MERV-8 filter to protect internal components from damage from dust and other particles
· Rare earth alloy tube evaporator to avoid freon leakage and prolong the service life of the coil
· Auto defrost technology to allow operation at low temperatures (36 degrees Fahrenheit)
· cETL Certified to withstand more rugged conditions 
· Precise humidity maintenance to automatically maintains your ideal humidity level from 36% to 90% 
· Auto restart to remember the settings in case of power failure
· Automatic diagnosis system to get troubleshooting tips through error codes
· Gravity drainage for no need to check the tank regularly
· Auto Restart to automatically restart to previous settings after a power outage
· Easy to use graphical control panel
· Optional remote control for remote sensing and control areas



1. Protection from Diseases – Environments with high humidity are where harmful microorganisms live and harm the surfaces they reach. Their small size is often deceiving as they are able to be highly detrimental. Without proper extraction and prevention, they can bring various health risks such as allergies, skin irritations, respiratory illness, and immune-related diseases. Another harmful group that brings health risks is mosquitoes. They, too, thrive in humid places. They have the ability to infect a person with malignant diseases such as dengue or malaria. Fortunately, the use of a dehumidifier is the best-proven way to prevent their growth and damaging effects.
2. Economical and Cost-Effective: Purchasing a dehumidifier is one of the best investments a person can make. It is designed to operate optimally with only a conservative use of energy. Moreover, with its long-term benefits, you are certain to have the most reliable prevention of common damages that take place because of excess moisture. Thus, investing in a dehumidifier saves you both time and money without having to do much.
3. Optimal Restoration Assistance – Because of its superb features and specifications, users are assured to obtain maximum performance to ease their restoration job. It is portable, durable, and very reliable when it comes to heavy water damage restoration projects.
4. Protection of Properties Against Damage – As the dehumidifier creates the most suitable breathing atmosphere for your home, it simultaneously keeps it inhospitable for harmful microorganisms to thrive and harm your valuables. You would not need to worry about molds in your clothes or shoes, damaged electrical wiring, and other related issues that come from excess moisture.
5. Prioritized Safety Due to Prevention of Structural Issues – Accidents can be widely prevented when you have the constant effect of a dehumidifier at home that prevents excess moisture from weakening your home’s structure and foundation.
6. Conducive Work Place for Higher Productivity – It is a proven fact that a workplace is positively affected by its favorable breathing atmosphere. By providing clean and safe ventilation, employees are certain to provide optimal productivity and benefit from each other’s motivated work ethic.

So, whether you are a homeowner or a business enthusiast, investing in a dehumidifier will surely provide you with all these benefits in your daily life.

More so, this and all of our dehumidifiers are supported by dependable warranty coverage.

Power 115 V/60 Hz
COP 2.27 L/kWh
Air flow 120 CFM, 205 CMH
Sound Pressure Level <52 dBA
Draining Gravity Draining
Capacity 113 PPD at Saturation, 53 PPD@AHAM
Size for Up to 1,200 Sq.Ft.
Functioning Temperature Range 33.8~104 ℉
Functioning Humidity Range 36%-90%
Refrigerant R410A
Filter MERV-8 Filter
Dim(L x W x H) 19.2×12.2×13.3 inch
Shipping Dim(L x W x H) 22.3x16.6x16.4 inch
Weight 44 Ibs (20 kg)
Defrosting Control system Automatic Defrosting
Loading Quantity 20': 260 Sets ; 40': 565 Sets ; 40'HQ : 678 Sets"

AlorAir Sentinel HD55 Conventional Dehumidifier (Blue)
If you want a better dehumidifier for less money, choose the HD55(Blue) for its great value. This Commerical Dehumidifier can remove 113 Pints at saturation, up to 1,200 sq. Ft, lowering the humidity to a comfortable level in a short period.

With its ergonomic design that eases its ability for frequent transportation and usage, it's sturdy housing that expertly protects its internal components, and its overall caliber, the Sentinel HD55 Crawlspace Dehumidifier has been one of the top choices for various applications such as:

· Flood restoration
· Furniture Drying
· Carpet Drying
· Laundry Drying
· Painting Projects
· Humidity Control for: Garages/Warehouses/Basements/Crawl Spaces/Shops/Restaurants/Bars/Museums/Sports Hall/Cellars/Offices/Laboratories/Food Storage

Proper Use and Maintenance
Every dehumidifier needs proper usage and maintenance to support its long-lasting capability. Here are some safety tips for using and maintaining it:
· Before using it, keep it steady in an upright position for about 30 minutes to allow the refrigerant and other internal components to settle
· If the unit is newly delivered, let it settle for about 12 hours before using it
· Make sure that your desired area is well-sealed by either shutting all windows, vents or using other barriers
· It must be connected to a grounded electric source to avoid accidents and damage
· Make sure you have the right power supply to avoid electrical issues
· It is not suggestible to use an extension cord as well as a power adaptor
· Use the control panel or remote to set your desired level of humidity
· The surface in which it is set to operate must be leveled and steady
· Do not position the discharge and inlet onto a wall
· Never tamper with the internal components while the unit is running
· Always maintain a 6ft. distance from any form of obstruction
· Avoid deploying it in areas with a high amount of corrosive materials
· Make sure to properly unplug it before deploying it to another area
· Never leave it plugged when not in use
· When cleaning, use a damp cloth dipped in mild soap solution in wiping its exterior
· Remember to check the inlet and outlet for any blockages
· Annually check up the coils for maintenance
· You may use a foaming coil cleaner for cleaning the coils
· Confirm that the cords are cleaned from any debris and are properly wrapped and secured for storage
· Make sure to properly dry it before storing
· If the unit gets flooded, make sure you completely let it dry by carefully opening it before attempting to reconnect it
· Seek professional help for other complex issues
· Never use the unit as a support or stepping stool when reaching high items

Make sure to read the manual and all other guides before using your dehumidifier, or any product for that matter. It is always better to be equipped with all essential information beforehand to reduce the risk of accidents and mishaps.

Reviews & Questions

95% of customers recommend this item

40 Ratings
4.8 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN% Complete
2 Stars
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1 Stars
100% Complete
Best Dehumidifier
By 'KP', Reviewed on February 12, 2023
I bought this dehumidifier 2 years ago for a crawl space. It is the most capable and reliable humidifier. I have purchased or replaced many unreliable units in the past. The small size of the unit is another great benefit
Robust Unit!

From the Amazon

By 'Chris', Reviewed on February 09, 2023
Crawl Space Dehumidifier.
Original unit had and issue.

From the Amazon

By 'Michael Baker', Reviewed on February 03, 2023
Unit seemed great at the beginning. Seemed to work. Then I found it shutdown after a day and unresponsive to the control panel. Ended up unplugging which reset the system. Placed it in Continuous Mode. Ran for another day shutdown. The supplier replaced the unit. I am giving 4 of 5, because the process of getting a replacement took a more effort on my part than I would have liked.
What a beast!

From the Amazon

By 'Ryan H', Reviewed on January 30, 2023
I live in new england and just built a house that is maybe TOO insulated and no windows in the garage. Parking in the winter, with snow and slush melting, the garage air would get THICK (heated floors) and the glass panels on the garage doors themselves would have so much condensation on them. We had your standard hardware store dehumidifier in there, but it didnot keep up well and it still stayed pretty humid in there. I finally bit the bullet and decided to go for a nice commercial style unit and was happy to find this American company. This unit is amazing! Since installing and setting the auto level at 50% humidity, there hasnot been a bit of condensation anywhere, this bad boy holds it tight at 48-50%. It is heavy, in a good way, feels like really solid components are used. I set it up with the plug in controller that mounts to the wall, super easy to set up and install. Is this overkill for my space? Absolutely, but it works amazing and can be used anywhere in the house with its specs. no regrets
Did not perform for my application, but the company was excellent to work with.

From the Amazon

By 'randy l cox', Reviewed on January 27, 2023
Sending back. Most I could get out of it was 4 pints a day in my application. Company sent me a second unit to try, but in the end the unit was not right for my application. Excellent company to work with.
Practically care free

From the Amazon

By 'Michelle S.', Reviewed on January 25, 2023
We set it up for the desired percentage of humidity. Hose goes to the drain and we do a little maintenance once a month! Works like a charm.
great unit, I have two

From the Amazon

By 'robert koeper', Reviewed on January 24, 2023
really keeps the humidity under control. great unit especially for the price
Bought for my crawlspace

From the Amazon

By 'Hy', Reviewed on January 23, 2023
Just bought very heavy efficient looking

From the Amazon

By 'S. French', Reviewed on January 22, 2023
Great product. The difference to my attic space and utility bill is impressive. I had this item professionally installed by an specialist for placement and proper draining. Clean the filter bi monthly.
Good value dehumidifier

From the Amazon

By 'Lane Malone', Reviewed on January 19, 2023
I placed this dehumidifier in my crawlspace last summer. Easy setup and has worked great so far. Very happy with the purchase considering the much lower cost compared to other options.


Is it can set a humidity level and then turn off automatically?

Ella on December 24, 2021

1 Answer

Answered by Alorair
Yes, you set it and leave it. It automatically turns off once it reaches the desired humidity level.
Can I add a longer drain hose, and what is the maximum length?

Jerry on December 23, 2021

1 Answer

Answered by Alorair
Yes, as long as you are not draining upwards. This unit only drains through gravity.
Would it collect water outside?

Nydia on December 23, 2021

1 Answer

Answered by Alorair
The unit comes with a drainpipe, and it only drains through gravity.
Is it a limited warranty? What are the warranty terms?

Murray on December 22, 2021

1 Answer

Answered by Alorair
1-year covers the entire unit. 3-years cover the refrigeration system 5-years cover ONLY the compressor.
Would it collect water outside?

Dennis on December 21, 2021

1 Answer

Answered by Alorair
The unit comes with a drainpipe, and it only drains through gravity.

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