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ALORAIR Basement/Crawl Space Dehumidifiers Removal 120PPD (Saturation), 55 Pint Commercial Dehumidifier, Energy Star Listed, 5 Years Warranty, Auto Defrosting, cETL, Optional Remote Monitoring

Model : Sentinel HD55

4.9 Average

$628.00 List Price: $1,200.00

Moisture Removal Capacity (115V/60Hz): 55 Pints/Day@AHAM (80°F-60%)
120 Pints/Day@saturation (90°F,90%)
Draining Mode: Gravity Draining

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SAVES YOU MONEY: Since it is Energy-Star rated, this dehumidifier will quickly remove moisture from the air without running up your utility bill. Energy Star appliances are not just better for the environment, they also cost 30% less to operate compared to non-Energy Star appliances.

Moisture remains the greatest threat to your home’s structural integrity. Increased humidity levels indoors can cause the growth of mold and mildew and an increase in dust mites. These are known allergens that cause respiratory problems and asthma. This is why need to invest in a dehumidifier today.

Key features

  • Compact and Smallest Size.
  • HVAC Remote System.
  • Automatic Defrosting System.
  • Ducting options for focus dehumidification.
  • Compatible with Remote Control.  (Notice: sold separately)
  • Rare earth alloy Tube Evaporator
  • Engineered for low-temperature operation and the airflow issues like the crawl space or attic.
  • Multiple quality certifications.


The Sentinel HD55 is built small compact and portable ideal for tight space dehumidification. With the patent for invention protected. This unit has CE, ETL, Energy Star certification.

The Sentinel HD55 has a wide range of applications including :

  • Crawlspaces.
  • Basements.
  • Storage areas.
  • Offices.
  • Warehouses.
  • Factories.
  • Bars.
  • Restaurants.
  • Museums.
  • Laboratories.
  • Laundry.


All-purpose use

  • Capacity. - The Sentinel HD55 removes at least 55 pints of water per day(AHAM) drawing only 4.1 amps. It is also energy efficient able to remove 2.4L/kWh consumed. Able to control humidity to a space of up to 1,300 sq. ft.
  • Performance.
  • Warranty – The Sentinel HD55 has an extended 5 years warranty. At Alorair we ensure that all out Sentinel HD55 units are built to meet the highest levels of quality and durability. Every unit is thoroughly tested and proven to be 100% functional before leaving the warehouse.
  • Support - All our customers enjoy efficient support, thanks to your technical support team via phone, email, or via live support. This ensures that all our customers receive the help they need whenever they encounter any challenges while operating the Sentinel HD55.

Power 115V/60HZ
Current(115v/60Hz) 4.1A
COP(115v/60Hz) 2.4L/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
Feet Adjustable Feet
Draining Gravity Draining
Defrosting Control system Automatic Defrosting
Functioning perature Range 33.8-105℉
Capacity115V(80ºF-60%)) 55Pints
Weight 57Ibs
Dim(LxWxH) 19.2X12.2X13.3in
Loading quantity 40”HQ :792Sets

Ratings Summary

98% Recommend this product of 86 responses

86 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN % Complete
2 Stars
NAN% Complete
1 Stars
NAN% Complete
Total: 86 Reviews
Great product
By 'Samuel Phillips ', Reviewed on 2021-05-13 18:43:19
I originally purchased a dehumidifiers of another brand item to use in our ~400 sq ft living room since we just moved closer to the beach. It was drawing an insane amount of water from the air, unfortunately I had to dump the filter at least once or twice a day. So I ended up returning this product, and purchasing an AlorAir® Sentinel HD55 dehumidifiers. Its ability to drain water is perfect even without a pump.
Very quiet. Easy to use.
By 'Barnaby Tillman ', Reviewed on 2021-04-15 10:29:38
Very quiet. Easy to use. Small compared to our old dehumidifier. The hose drain works great! It consistently keeps our large basement between 40-45% humidity which is quite comfortable and never smells musty or damp with this dehumidifier running.
Dehunidifier Works Great
By 'Teejay Watson ', Reviewed on 2021-03-25 13:52:49
I spend weekends at my aunt's home and her house was built in 1911. The foundation is Riverstone and mortar and has never been waterproofed or sealed in any way and is about 35'x40' internal. Needless to say, when the ground freezes or we get a good soaking rainstorm the walls are damp to the touch and mildew is a huge problem, so a dehumidifier is an absolute must. This thing is an absolute champ, pulling much more dampness out of the air and walls than the previous unit, to the point where the air is actually crisp and dry. The ability to attach a hose and run the water directly into the sump pump is a huge boon as well. Plus, this is very quiet for the size, and she admitted in the first few days she had to check on it to see if it was running as she was used to the clanking thrum of the old unit. We are very happy with the performance, level of noise (basically none!), and ease of use with this dehumidifier.
Great equipment
By 'Waseem Appleton ', Reviewed on 2021-03-15 15:47:16
The housing of this dehumidifier is made of sturdy material and looks very durable. Although it does have a certain weight, it is still very light, and any strong person can lift it. The device is easy to install, all you have to do is place it in a humid space, plug it in, and adjust the settings to your liking. By connecting the drain hose, the machine will automatically drain, so you don't need to pay special attention.
Quiet unit, easy to use
By 'Sultan Quintero ', Reviewed on 2021-03-08 16:34:23
I am glad I chose this dehumidifier, the product is exactly what I want. I have been using it for a few months and it is perfect for my old damp basement, it is lightweight and easy to use, the filter is easy to clean, and it's super quiet! Overall I am very satisfied with my purchase and would recommend it.
Easy to install, quiet and compact
By 'Lana Mccarty ', Reviewed on 2021-03-01 15:56:02
I am very satisfied with this dehumidifier. This dehumidifier is quieter than I expected, is smaller and more attractive than my previous dehumidifier. It is easy to use and easy to install. I have some questions about the dehumidifier and contacted customer service. They responded quickly. I am very satisfied with the help of customer service to my problem.
Reliable and quiet
By 'Shae Reilly ', Reviewed on 2021-02-22 10:47:37
It is very quiet and efficient. Easy to install anywhere. The drain pipe is not very long, so it is restricted when used. I use it in the basement. Surprised how much moisture this machine absorbs from the air! I am very satisfied with this product and would definitely recommend it. We have not encountered any problems. I will buy this model/brand again.
Overall a good unit
By 'Maximus Thorpe ', Reviewed on 2021-02-07 10:56:46
This dehumidifier does a very good job of keeping the small basement dry! Compared with our previous ones, it is so small, compact and quiet, which surprised me. This unit has been working in the basement for several months, and our basement no longer smells of humidity! Highly recommend!
Great product!
By 'Roberto Gallagher ', Reviewed on 2021-02-01 13:33:18
Excellent quality, very compact and quiet. I purchased this product based on all reviews. I have been running this dehumidifier in the basement for several months and it helps to keep the entire basement (about 900 square feet) of moisture. I am very happy about this. I am very satisfied with my purchase and would recommend it to others.
The machine works well
By 'Korey Luna ', Reviewed on 2021-01-25 14:04:06
The effect of this dehumidifier is very good. We use it in a 1000 square foot basement. It does a great job. We have been running this machine almost all the time and it has not caused us any problems. Even at low temperatures, the automatic defrosting system of this unit can make it work well. Overall, we are very satisfied with this product, and it is much cheaper than other products that perform the same function.


Questions & Answers
Answered by Alorair
No, you don't. You just plug it directly into the socket
Does this model have a drain hose connection?

Kaitlin on 2021-03-25 14:02:56

1 Answer

Answered by Alorair
Yes, you slide out the water tank, feed the hose through the cut-out, and then replace the water tank. Ready to go.
Is the equipment equipped with wheels?

Hina on 2021-03-20 15:08:26

1 Answer

Answered by Alorair
The device doesn't have wheels but its stackable design saves more space and can transport large quantities of machines to their destinations.
Does this dehumidifier need batteries?

Tyla on 2021-03-16 15:21:45

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier does not require batteries. The device operates by connecting to a power source. Thanks for your question!
Answered by Alorair
Hello, the minimum working temperature of the Sentinel HD55 dehumidifier is 33°F. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the feet on the bottom of the Sentinel HD55 dehumidifier are adjustable. Thanks for your question!

1 Answer

Answered by Alorair
Hello, when you want to store this machine, you must comply with the following regulations. • Turn off the dehumidifier and let it dry. • The power code should be packed and fixed. • The filter should be protected by covering. • Make sure to store the equipment in a clean and dry place. Thanks for your question!
Answered by Alorair
Hello, when you want to turn off the unit, please use the remote control or turn it off on the device switch. Avoid using the power switch to turn it off. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier is equipped with a rare earth alloy tube evaporator. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier is equipped with a rotary compressor. Thanks for your question!

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