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AlorAir® Sentinel HDi90 Duct-able Version Basement/Crawl Space Dehumidifiers 198PPD (Saturation) 90 Pints (AHAM), Condensate Pump, Automatic Defrosting, Epoxy Coating, Remote Control (Optional)

Model : Sentinel HDi90

4.9 Average

$1,047.00 List Price: $1,550.00

Sentinel HDi90 dehumidifier is designed specifically for crawl spaces and basements. Low noise level, great COP,2.69 L/kwh, and huge capacity 90PPD at AHAM condition.
Draining Mode: Condensate Pump

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Crawlspaces or basements tend to have increased humidity levels. This is mainly because these spaces are either partially or completely underground. Once the moist air comes into these spaces, the moisture condenses on the walls or floor. This causes increased dampness.

Increased dampness creates the perfect environment for increased dust mites and the growth of mold and mildew. According to the American lung association, these are known allergens that can cause respiratory problems and asthma.

Key features

  • Quiet operation.
  • Energy-efficient - Super COP Energy Star Listed 2.69L/Kwh.
  • Compatible with Remote Control.  (Notice: sold separately).
  • Ducting options.
  • Automatic Defrosting System.
  • Corrosion protection.
  • Overheating protection.
  • Engineered for low-temperature operation.
  • Rare earth alloy Tube Evaporator


The sentinel HDi90 is horizontally configured, built with an advanced airflow design that makes this unit the best choice for dehumidification in tight spaces with airflow issues.

The sentinel HDi90 is uniquely built to be deployed in:

  • Residential spaces.
  • Restoration jobs.
  • Shop.
  • Storage facilities.
  • Garages.
  • Laboratories.
  • Offices
  • Crawlspaces.
  • Basements.

Capable of maintaining humidity levels controlled in any space below 2,600 sq. Ft.

All-purpose use

Capacity. - The sentinel HDi90 is able to remove:

  • 90 pint of water per day(115V(80ºF-60%)

 This is impressive especially because of its small size and low energy consumption.

Performance. – The sentinel HDi90 combines a number of features to effectively lower the humidity levels. These features include:

  • Continuous Pump drainage - sentinel HDi90 is equipped with a condensate pump that is able to pump the collected water out of the unit via a pipe. This water can be pump at a distance of over 5 meters.
  • Durably built - The sentinel HDi90 has a corrosion protection layer that protects the unit from the corrosive environment in which it will be deployed.
  • Air filtration - The sentinel HDi90 has a washable filter that traps mold spores and other air impurities to improve the indoor air quality.
  • Silent operation - The sentinel HDi90 produces a low noise level while operational hence will not affect your comfort levels.
  • Defrosting system - The sentinel HDi90 has an auto defrosting system that increases the efficiency of the dehumidifier, especially in low temperatures.
  • Easy installation and set-up - The sentinel HDi90 allow a variety of installation option, all of which are easy and don’t require you to hire a technician. This is a plug and plays appliance with no technical knowledge needed.
  • Duct options – A duct can be added to the sentinel HDi90 to provide focused dehumidification or allow you to dehumidify space where the dehumidifier can fit or you can use the duct to connect the sentinel HDi90 to the existing HVAC system for whole-house dehumidification.
  • Remote control - The sentinel HDi90 allows you to remotely adjust the dehumidifier setting remotely. This makes it convenient to operate a dehumidifier in a tight space. (Sold separately)

Warranty – The sentinel HDi90 has an extended 5 years warranty. At Alorair we have designed and built the sentinel HDi90 dehumidifier to exceed the customer quality expectations. All sentinel HDi90 units are thoroughly tested and proven to be fully functional.

Support – All Alorair customers get to enjoy efficient user support via email, phone, or live chat. We are dedicated to helping all our customers with any challenges they may face while operating the sentinel HDi90.

The sentinel HDi90 has lots of unique features that all combine to efficiently and effectively control the humidity levels! invest in the sentinel HDi90 today!

Power 115V/60HZ
Current 5.56A(115v/60Hz)
COP 2.69L/Kwh(115v/60Hz)
Size For Up to 2,600 sq.ft.
Filter Clean Air Filter,HEPA,MERV-8
Air flow 210 CFM,350 CMH
Sound Pressure Level <58DBA
Refrigerant R410A
Feet Adjustable Feet
Draining Condensate Pump
Defrosting Control System Automatic Defrosting
Functioning Temperature Range 33~104℉
Functioning Humidity Range 35~90%
Capacity115V(80ºF-60%) 90 Pints
Weight 85.9 Ibs
Dim(LxWxH) 23.2x15.2x17.7in
Loading quantity 20”:180Sets/40”:412Sets/40”HQ :515Sets

Ratings Summary

97% Recommend this product of 39 responses

39 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN % Complete
2 Stars
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1 Stars
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Total: 39 Reviews
Definitely worth the price
By 'Rubi Fritz ', Reviewed on 2020-09-21 15:47:45
This is the best dehumidifier I have ever bought!!! Easy to move, operate, and empty. I have been using it for about 2 months and it does make the basement no longer damp. The air is good and there is no moisture. Buy it... you won't regret it!
Wow. Really efficient
By 'Jaylen Whittle ', Reviewed on 2020-09-14 15:45:03
When my original equipment broke down, I purchased this equipment to use in my basement. It thoroughly cleaned the air (no more basement smell) and sucked all the moisture into the water tank. It's really fast, I don't have to empty the water tank every day. I use a hose to drain water. If you want the dehumidifier to always operate at home, I totally recommend this unit.
This machine is awesome! ! !
By 'Romeo Craig ', Reviewed on 2020-09-07 15:12:00
We got this because our apartment was too damp, the carpet always felt so wet, the salt (in a jar) was ruined, and after we found mold on the floor, we bought this after some quick research product. This thing is amazing! The humidity in our apartment was reduced to a normal level and there was no mildew. It is very easy to set up and comes with a manual. All in all, I like it, it does a great job and we are very satisfied!
good quality. Excellent performance for several months.
By 'Lia Eaton ', Reviewed on 2020-09-01 15:05:44
I usually use the product for a while, and then write a review to ensure that the product is of good quality and will not be damaged within 30 days. Before purchasing an AlorAir Basement/Crawl Space dehumidifier, I tried to do as much research as possible to determine which brand seemed to have the best reputation in terms of quality, price, and warranty. After 4 months of use, it has exceeded my expectations in all aspects. I have nothing to say about this unit, I highly recommend it.
By 'Myla Wilson ', Reviewed on 2020-08-25 08:45:32
Bought this for my basement. The basement is sometimes very humid for many reasons, I believe every homeowner has experienced it. The working principle of the dehumidifier is very simple. It has a hygrometer on it and can regulate itself well. I have a separate thermometer/hygrometer combination, which I moved to the basement for comparison and read very carefully. After spending a day or two in the basement, I noticed a huge difference. There is no moldy smell/humidity. highly recommended. After two months of use, it has no quality problems.
Help improve basement air
By 'Kayla Britt ', Reviewed on 2020-08-17 15:07:54
Sentinel HDi90 works well. When I don't use it, the humidity in the basement exceeds 60%, so it has a musty smell. It can keep the basement at around 40-45%, and it definitely helps eliminate odors. My basement is large, so there is no smell in the area, but the further area is still stagnant. I might buy another one on the other side of the basement in the future.
Worth investing
By 'Jarvis Higgins ', Reviewed on 2020-08-14 10:42:10
This Duct-able Version Sentinel HDi90 dehumidifier is a great choice for me. I installed one in the garage to control moisture and water leakage, and by adding a duct, the space was completely dry and hygienic. My garage is now a good place to store and work.
Works Well
By 'Boyd Dotson ', Reviewed on 2020-08-04 12:05:52
This unit is attractive and effective. The setup is simple and it works very well. very quiet. I put this unit in our basement, and a major change occurred in just a few days.
Efficient dehumidifier
By 'Sherry Rosario ', Reviewed on 2020-07-28 08:26:25
I live in a small apartment in Florida. The humidity is very high. Sweating in the summer makes it uncomfortable. Although I can turn on the air conditioner to cool down, it does not dehumidify well. My last model no longer works, so I got a 90 pint Sentinel HDi90 unit. This unit has perfect functions and good performance. It pumps a lot of water from the air in just one day. Love this product!


Questions & Answers