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AlorAir® Sentinel HD55 Basement & Crawl Space Dehumidifier, Capacity: 55 PPD (AHAM), 120 PPD (Saturation)

4.9 Average

Model : Sentinel HD55
$788.00 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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Product Information

Key features:

  • Compact and Smallest Size.
  • HVAC Remote System.
  • Hot Gas Valve Defrosting System.
  • Ducting options for focus dehumidification.
  • Compatible with Remote Control.  (Notice: sold separately)
  • Coated coils with the stainless side plate.
  • Engineered for low-temperature operation and the air flow 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 certification.

The Sentinel HD55 has a wide range of applications including :

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


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.

All-purpose use:

  • Capacity. - The Sentinel HD55 removes at least 55 pints of water per day(AHAM) drawing only 3.6amps. It is also energy efficient able to remove 5 pints per kilowatt 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 24/7 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,220V50HZ
Current(115v/60Hz) 3.6A(115v/60Hz)
COP(115v/60Hz) 2.4L/Kwh(115v/60Hz)
Size For Up to 1,300 sq.ft.
Filter G3
Air flow 130 CFM,230 CMH
Sound Pressure Level <52DBA
Refrigerant R410A
Feet Adjustable Feet
Draining Gravity Draining
Defrosting Control system HGV Defrosting
Functioning perature Range 33~105℉
Capacity115V(80ºF-60%)) 55Pints
Weight 59Ibs
Dim(LxWxH) 19.2X12.2X13.3in(490x310x340mm)
Loading quantity 40”HQ :792Sets

Ratings Summary

97% Recommend this product of 47 responses

47 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: 47 Reviews
This is what I want!!!
By 'Matthew Rowley ', Reviewed on 2020-03-19 19:35:18
It works really great! I am amazed at how much water is in the air. I can easily adjust it what humidity I want the room to be. Its small size and compact size make it ideal for basements and crawl spaces.
Nice dehumidifier!
By 'Tobey Franco ', Reviewed on 2020-03-16 09:27:48
I bought this machine in the recently renovated basement, where I put a lot of things.Because it often rains, the basement of the scent smells like rotten wood, I am afraid I stored in the basement of the things will be damaged because of too much water, so I decided to buy Dehumidifier, I compared the many Dehumidifier, finally, I choose to buy AlorAir ® Sentinel HD55 Dehumidifier. I'm glad to buy this dehumidifier.It really absorbs a lot of water.Very good product, like it!
Small and compact
By 'Ferne Barrow ', Reviewed on 2020-03-12 14:58:49
This dehumidifier is very small, sits on the floor taking up almost no space, and the water reservoir fills up in 3 to 4 days. I'm glad I chose it over the more expensive option.
It's so good!!!
By 'Taigren ', Reviewed on 2020-03-10 16:22:31
Works great so far.I will update once I had it for a longer period of time.It does exactly what it’s supposed to.It runs very quiet and looks elegant so it doesn’t disturb the room design at all.Seems very sturdy and looks like very good quality.
Everything at a glance!
By 'Keith ', Reviewed on 2019-11-18 11:00:13
It's the right size, small enough to fit into the crawl space. It worked very well, and it drained a lot of water. I wish it has a timer function which would allow it to automatically turn it on and off at preset hours. Of course, its continuous drainage work is also very good.
So happy I went for it
By 'Lorenzo ', Reviewed on 2019-10-24 09:25:17
So far, so awesome. This Sentinel HD55 has transformed my basement. We no longer have that damped smell in the basement and also we have not had any mold returned. We plan on buying another one for another section of my home.
Highly recommend
By 'Anne-Marie ', Reviewed on 2019-10-16 12:02:59
Fits perfectly in a small space in our basement! I especially like the fact that it comes with everything no need to purchase anything! The hose is very long and it could be shortened! I'm pleased.
Not the best but
By 'Shay ', Reviewed on 2019-10-05 14:08:34
Now it is set on the lowest humidity setting of 35% which should allow the compressor to cycle occasionally. It is quiet and can't be heard in the main house. Noise isn't an issue at all. It has 5 years warranty, I do not need to buy an extended Year Service Plan on the extended warranty (5 years is enough for that).
Awesome and good looking!!!
By 'Tayyab ', Reviewed on 2019-09-25 09:37:50
Great price for a Sentinel HD55 dehu that sucks the humidity right out of the air. We had to shut it off because it felt like the desert after a while. It is simply awesome and well worth it.
Basement Humidity has been stableized
By 'Melanie ', Reviewed on 2019-09-16 14:32:45
The Sentinel HD55 dehumidifier came in one day. It's the same capacity as my last one but much smaller looking. They all make some noise, but this one seems quieter than the last. I have it in the basement so noise isn't an issue. Since there are so many to choose from and good and bad reviews about all of them, this seemed like the best choice.


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5 Years Warranty

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AlorAir Restoration Equipment offers a variety of equipment for all your restoration needs from water damage restoration to drying equipment. Including Commercial dehumidifier, Air Movers and Air Scrubber. AlorAir offers special dehumidifier for the basement and crawl space.

Contact Information

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Tel: (888) 990 - 7469

(Monday-Friday: 08:00AM - 5:00PM) PDT

Email: sales@alorair.com

Web: www.alorair.com

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