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)

5.0 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 (in 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.

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.



· Ultra-compact design with super performance
· Adjustable foot pad and portable handle to transport and install easily
· MERV-8 filter to protects 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 temperature (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
· Hanging kits to reduce noise and vibration



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 57.3 lbs (26 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 Storm Ultra LGR Commercial-Grade 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/Computer Rooms/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

100% of customers recommend this item

33 Ratings
5.0 Average
5 Stars
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Highly recommend it!
By 'Ian', Reviewed on 2021-11-18 09:30:26
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 2021-11-17 10:16:24
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 2021-11-16 09:18:41
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 2021-11-15 11:24:08
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 2021-11-13 10:07:52
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 2021-11-12 15:05:19
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 2021-11-11 14:21:01
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.
Highly recommend it!
By 'Jacqueline', Reviewed on 2021-11-10 09:56:31
It is an excellent dehumidifier. It is easy to use, and I'm delighted with my purchase, and I'm glad I took the chance. It doesn't seem to give off too much heat or noise. It is quieter than my a/c.It runs great and makes a very noticeable difference in the humidity. I can work in the garage now with a fan running and feel very comfortable.
Highly recommend it!
By 'Ingemar', Reviewed on 2021-11-09 09:56:04
I bought this dehumidifier because it is the newest model, and it has a more up-to-date controller panel. Before I install it in the crawl space in my house, which is a lot of work to do, I am testing the dehumidifier and remote controller in my living room for a few days to evaluate its performance. The unit was easy to use, and it seems that everything is working as described. So far, I will recommend it.
Get the job done!
By 'Hamiltion', Reviewed on 2021-11-08 10:08:41
I have a townhome in the midwest. It is pretty humid in the summer. So, I bought this uint want to remove the extra moisture. In 24 hours, it has dropped the RH from 71% to 41% in the basement. 68% to 54% on my main story. Even though I don't have a gauge for the floor, the musty smell and clammy feeling are gone.


Is this unit solid? What material is made of this unit?

Esme on 2021-08-27 09:29:34

1 Answer

Answered by Alorair
Hi, Esme, this unit is robust and is made of a rare earth alloy tube evaporator.
Can the unit be easy to move?

Zora on 2021-08-17 10:16:00

1 Answer

Answered by Alorair
Hi Zora, the wheels of the unit consist of 4 Adjustable footpads, which are easy to move.
What's the power of the unit?

Juliet on 2021-08-14 09:38:01

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 2021-08-13 09:40:48

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 2021-08-12 10:18:02

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 2021-08-11 14:03:40

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.
Does this unit have smart WiFi control?

Tom on 2021-08-09 16:59:36

2 Answers

Answered by Alorair
Hi Tom, this unit has a smart WiFi control function. So, this unit can MONITOR THE RESTORATION PROCESS ON THE GO! Our free AlorAir mobile app is included with the unit upon purchase.
Answered by Larry
A further question: Oh, so WiFi is the difference between this Gold model and the standard HD55 model - I was looking hard on-line and in the respective manuals for what the difference is (since there is also a difference in price). No mention of WiFi at all, except in this Q&A! What are the instructions for setting up and using the WiFi, and how does that integrate with the panel controls and remote control? This is a pre-sales question.