AlorAir 120 PPD Commercial Dehumidifier, with Drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, cETL Listed, Compact, Portable, Auto Defrost, Memory Starting, 5 Years Warranty

Model : AlorAir® Sentinel HD55 (gold)

4.9 Average

$648.66 List Price: $850.00


This AlorAir Commercial Dehumidifier 120 PPD won't let you down when it comes to staying dry. And it's perfect for brightening up dark spaces. Most importantly, it has the same quality as the star product (HD55 white) at a reasonable price.

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

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Product Overview

AlorAir Sentinel HD55 Conventional Dehumidifier (Yellow)
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 disease - Harmful microorganisms live in high-humidity environments and damage the surfaces they reach. Not properly extracted and prevented, they can cause various health risks such as allergies, skin irritation, respiratory illnesses, and immune-related diseases. Another dangerous group that poses health risks is mosquitoes. They also thrive in moist places. They can infect people with nasty diseases like dengue fever or malaria. Fortunately, a dehumidifier helps prevent their growth and harmful effects. 
2. Cost-effective: Buying a dehumidifier is one of the best investments a person can make. It's designed to function optimally and is energy-saving. Plus, it can prevent damage caused by excessive moisture in the long run.
3. Optimal remediation support - Users can be sure they'll get maximum performance to facilitate their remediation work. It's portable, durable, and reliable in the remediation of severe water damage.
4. Protecting property from damage - The place will be inhospitable to harmful microorganisms that could attack your valuables. 
5. Priority safety by preventing structural problems - can primarily prevent accidents if you have a dehumidifier at home that prevents excess moisture from weakening the structure and foundation of your home.  
6. Pleasant workplace - It's been proven that a workplace is positively affected by fresh air to breathe. When you provide perfect ventilation, your employees will be optimally productive and benefit from each other's motivated work ethic.  
More so, all of our dehumidifiers come with a reliable warranty, which you can also read about on this website. If you've any further questions, don't hesitate to contact our customer service representatives. We'll be happy to help you decide on your dehumidifier needs.

Power 115 V/60 Hz
Current(115v/60Hz) 4.1 A
COP(115v/60Hz) 2.4 L/Kwh
Size For Up to 1,300 Sq.Ft.
Filter MERV-8 Filter
Air flow 130 CFM,230 CMH
Sound Pressure Level <52 dBA
Refrigerant R410A
Draining Gravity Draining
Functioning Humidity Range: 36%-90%
Functioning perature Range 33.8-104℉
Weight 44 lbs (20 kg)
Capacity115V(80ºF-60%)) 55 PPD
Dim(LxWxH) 19.2X12.2X13.3 in
Shipping Dim(LxWxH) 22.3x16.6x16.4 in
Loading Quantity 20': 260 Sets; 40': 565 Sets; 40'HQ: 678 Sets

AlorAir Sentinel HD55 Conventional Dehumidifier (in Gold)
You and your family always deserve the best. Here at AlorAir, we take into consideration the most suitable products for our consumers. This includes creating dehumidifiers that are proven to work flawlessly without incurring high energy consumption. This makes the AlorAir Sentinel HD55 Conventional Dehumidifier very suitable for home basements and crawl spaces.



With its ergonomic design that eases its ability for frequent transportation and usage, its sturdy housing that expertly protects its internal components, and its overall caliber, the AlorAir 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/Computer Rooms/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

99% of customers recommend this item

36 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
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Works well!
By 'Verne', Reviewed on November 22, 2021
Our basement had a musty smell. So, I search for a dehumidifier on Amazon. When I found this one, I decided to try it. When it arrived, I unpacked it (the unit was well protected by its packaging) and read the instructions. And we installed the unit in our basement. There was a drain hose to let the water the dehumidifier pulled out of the air and run into the floor drain. Setting the controls was easy, and all it took was a few button presses, and the unit was running. After a few days, the basement's musty smell is gone.
By 'Sarah', Reviewed on November 20, 2021
This dehumidifier is perfect. After using it for a week, here are my thoughts: first of all, the unit is mighty. It brought the humidity in my house down. And it's easy to operate. The unit with just a few self-explanatory buttons on the panel, and it can just plug and play. The unit's not loud and works efficiently, so it doesn't have to stay on for too long to get to the humidity level I want. Overall I like it a lot. I live next to the gulf coast, where the humidity is frequently 60%+, which helps drop it down to a more comfortable level.
Great job!
By 'Jean', Reviewed on November 19, 2021
We bought this dehumidifier for our basement. Before I even plugged in, I read the manual that came with it and realized that you could set the level of humidity you want to suit your need, and you can plug in the water hose to let the leftover water out. After using it for a couple of days, my wife said that when she walked into the basement, she felt relieved to breathe, and her skin was not as dry as before. I will definitely recommend this item to my friends and family! Great job!
Highly recommend it!
By 'Ian', Reviewed on November 18, 2021
We have had numerous dehumidifiers for our 1500-square ft basement, where we keep several bookshelves of books that would deteriorate in high humidity. This dehumidifier is exceptionally efficient, pulling moisture out of the air even when heavy rains are outdoors. Recommend this unit highly. Easy to set up; filter access is easy. We attach a drain hose to the unit so water drips into the downstairs basement drain.
Great dehumidifier!
By 'Phyllis', Reviewed on November 17, 2021
Great dehumidifier! It gets the humidity down very efficiently, and it is a higher quality unit. It comes with an attachable hose to continuously drain the water, so you don't worry about constantly draining it yourself. As far as noise, the unit is quieter than many desktop fans and isn't loud enough to distract you if you're watching tv or listening to music.
Highly recommend it!
By 'Sara', Reviewed on November 16, 2021
Even with the A/C running, our house stays very humid in the summer. In the past, we have had to rely on little containers of moisture absorbent placed in all of our closets to keep things from getting musty. Clothes that we had to hang dry would stay damp. The humidity even makes it hard to dry my hair after a shower! So we knew that we had to do something to get the humidity level down, and this dehumidifier was our choice. After running it for just a little while, the humidity monitor in our house already showed the humidity level goes down, and the unit doesn't take up much room.
Well worth the money!
By 'Yvonne', Reviewed on November 15, 2021
Well worth the money. We noticed mold in some damp spots in the basement and figured we needed to go all out. We bought this unit, and it took water out of the air. Amazing! It feels so much better down there now! A must-buy. Just break down and buy it! It's a lot to spend, but what an unbelievable difference.
By 'Gale', Reviewed on November 13, 2021
We bought this dehumidifier, and it has been fantastic! We have a lot of sliding glass doors in our house, and they let in a lot of humidity from outside, so we bought this to help, and it's fantastic. Run it and let it work its magic! There's a definite difference between outside and inside now. And I no longer feel a constant need to wash my face when I'm sitting around at home. It's doable, and the handle is convenient. A bit rattly while running, but I put a felt circle sticker underneath it, which solved the problem instantly.
well so far
By 'Isabella Clin', Reviewed on November 12, 2021
It works well so far. It only took a few weeks. Mine was checked as the Wi-Fi model on the box and included instructions on how to set up Wi-Fi. When I tried to follow the instructions to set it up, I found that it didn't have the correct control panel to start Wi-Fi. In addition, I am very satisfied with this unit. It does a great job. There is a handle on the top, which is very helpful in reducing the crawl space. Reduce humidity from 57% to 43% in a day or two.
Really happy
By 'Mark Jim', Reviewed on November 11, 2021
We have an old mansion of 1300 square feet. The huge (wet) basement. We are cured. There is no more moldy damp smell. I am really happy to buy it this time.


How many years of the warranty for this commercial dehumidifier?

Helen Eden on October 22, 2021

1 Answer

Answered by Alorair
1- Year Full coverage 3- years (Compressor and refrigeration system coverage) parts and labor 5 - yeas (compressor)
Is this unit solid? What material is made of this unit?

Esme on August 27, 2021

1 Answer

Answered by Alorair
Hi, Esme, this unit is robust and is made of a rare earth alloy tube evaporator.
How many square feet will this dehumidifier cover?

Liliana on August 23, 2021

1 Answer

Answered by Alorair
Hi, Liliana, this unit can cover up to 1,300 sq. ft.
Can the unit be easy to move?

Zora on August 17, 2021

1 Answer

Answered by Alorair
Hi Zora, the wheels of the unit consist of 4 Adjustable footpads, which are easy to move.
What type of filter does this machine use?

Gabrielle on August 14, 2021

1 Answer

Answered by Alorair
Hi Gabrielle, this machine uses a MERV-8 filter.
What's the power of the unit?

Juliet on August 14, 2021

1 Answer

Answered by Alorair
Hi Juliet, the power of the unit is 115V/60HZ.
Does this machine need to be poured by hand?

Emilia on August 13, 2021

1 Answer

Answered by Alorair
Hi Emilia, there is no water tank in this dehumidifier, and it drains automatically through a pipe.
What is the decibel value of this unit?

Dante on August 12, 2021

1 Answer

Answered by Alorair
Hi Dante, the decibel value of this unit is below 52 DBA.
Does this unit have an automatic defrost function?

Debora on August 11, 2021

1 Answer

Answered by Alorair
Hi Debora, this unit has an automatic defrost function. A quick and efficient defrosting process, truly makes the dehumidifier able to work at a low temperature (36 degrees Fahrenheit), if frost is detected on the coils, an automatic defrost cycle runs to avoid frost build-up and issues associated with that build up. It makes the unit work continuously and efficiently without periodic stopping during the defrosting process. It not only saves energy but also makes the unit last longer.

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