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

4.9 Average

Model : Sentinel HD55
  • +4More
$877.00 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 43 responses

43 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: 43 Reviews
very suitable
By 'Joann Zavala', Reviewed on 2020-05-29 18:55:23
This is a dehumidifier that suits me very well. I like its quiet operation, which allows me to work at ease. It extracts at least 55 pints of water every day, which is enough for my small house, and I do n’t need to worry about my house being damaged by mold.
Buy now
By 'Isaak Bowen', Reviewed on 2020-05-22 15:02:52
My dehumidification equipment is old and cannot start to operate normally, so I need a new dehumidifier to keep the basement air dry. I think this unit is worth it. It runs quietly and can operate at low temperatures. Consumer Reports listed it as an Energy Star, a great product.
Recommended by everyone
By 'Jill Barker', Reviewed on 2020-05-16 09:16:24
By comparing with several other basement dehumidifier products, I chose to purchase this AlorAir® Sentinel HD55 Basement & Crawl Space Dehumidifier. It has an Energy Star rating and cannot find any negative factors. This is also the type of product recommended and liked by the public.
One of the best dehumidifiers
By 'Mariana Smith', Reviewed on 2020-05-08 08:56:01
AlorAir® Sentinel HD55 dehumidifier does a good job. In most similar products, this is one of the most praised humidity controllers. It has passed several quality certifications and has a 5-year warranty. Full-featured, with a dehumidification capacity of at least 55 pints per day, it can be installed in any space requiring dehumidification.
Can be used for a long time
By 'Fiona Bennett', Reviewed on 2020-05-05 08:42:14
I have used Alorair®55 pint dehumidifier for more than two months and the effect is very good. It will not be too noisy during operation, and has good performance and quality, can be maintained and used for a long time.
By 'Erika Dunne', Reviewed on 2020-04-30 08:59:52
I don't know, my basement is leaking and a large area is soaked. Experts brought this compact dehumidifier for repair work. It extracts water from the air to reduce the humidity level. It ’s really easy to use, and I ’m thinking about whether I should buy it myself so that it ’s needed when it ’s needed.
Quiet and energy-saving
By 'Philippa Hall', Reviewed on 2020-04-28 09:42:27
I bought this model dehumidifier and installed it in the underground storage area, the operation is very quiet. I know quiet is a relative term, but this is much quieter than my previous model. Moreover, it consumes less energy and does not need to pay high electricity bills.
Suitable for small families
By 'Bree Garza', Reviewed on 2020-04-25 14:58:56
We have installed the AlorAir® Sentinel HD55 dehumidifier. On the first day of operation, we completely fell in love with this unit. This is ideal for dehumidification in small kitchens, bathrooms, and even small basements. recommend!!!
By 'Tanner Sharma', Reviewed on 2020-04-21 08:23:58
For the past 2 years, I have been using the Sentinel HD55 dehumidifier, and it works really well. Just a few days ago, I recommended this product to my best friend. The manufacturer's service was excellent, and the machine arrived intact.
It is a good idea
By 'Patrycja Kerr', Reviewed on 2020-04-17 08:44:23
I have been looking for a good dehumidifier, and I bought this Sentinel HD55 dehumidifier, it is very good, strong, quiet, and can quickly remove moisture from the air. If necessary, I will repeat the purchase.


Questions & Answers
Can HD55 filter multiple times?

Eason on 2020-04-27 16:03:59

0 Answer

Answered by Alorair
Please kindly find our hose size for Sentinel HD55: Inside Diameter: 14 millimeters; Outer diameter: 18.5 millimeters.
Does the fan run continuously?

Saima on 2019-11-11 16:14:17

1 Answer

Answered by Alorair
Yes, it needs the continuous operation of the fan to draw air into the dehumidifier
Answered by Alorair
It's better to have a separate circuit.

Mercer on 2019-10-07 10:20:29

1 Answer

Answered by Alorair
It would not reset itself since a power outage would amount to turning the machine off or unplugging it.
Answered by Alorair
Yes. There is a digital control panel on the top of the unit to set the humidity percentage.
Continious drain option?

Samera on 2019-08-30 09:28:46

1 Answer

Answered by Alorair
AlorAir® Sentinel HD55 Dehumidifier is gravity draining. It comes with a 2 meters drain hose.

1 Answer

Answered by Alorair
It pumps out about 55 pints of water a day.

1 Answer

Answered by Alorair
Yes, it is certified with ETL, Energy-Star. Thanks.

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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

Address: 4240 Latham Street, Suite D, Riverside, CA 92501

Tel: (888) 990 - 7469

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

Email: sales@alorair.com

Web: www.alorair.com

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