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ALORAIR Basement/Crawlspace Dehumidifiers 198PPD (Saturation), 90 Pints (AHAM), 5 Years Warranty,Energy Star, Condensate Pump, Auto Defrosting, Epoxy Coating, Remote Control (optional)

Model : Sentinel HDi90

4.9 Average

$1,097.00 List Price: $1,550.00

Sentinel HDi90 dehumidifier is designed specifically for crawl spaces and basements. Low noise level, great COP,2.88/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.

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.

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.
  • Coated Coils with Stainless Side Plate.
  • Heavy-Duty Condensate Pump.


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 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 low noise levels while operational hence will not affect your comfort levels.
  • Defrosting system - The sentinel HDi90 has an Automatic 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 24/7 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 5.50A
COP 2.69L/Kwh
Size For Up to 2,600 sq.ft.
Filter Clean Air Filter,HEPA,Merve-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 33.8~104℉
Functioning Humidity Range 35~90%
Capacity115V(80ºF-60%) 90Pints
Weight 85.0Ibs
Dim(LxWxH) 23.2x15.2x17.7in
Loading quantity 20”:180Sets/40”:412Sets/40”HQ :515Sets

Ratings Summary

97% Recommend this product of 61 responses

61 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: 61 Reviews
The best dehumidifier!
By 'Mihai Romero ', Reviewed on 2020-11-30 10:47:21
Our basement is moldy, this dehumidifier is a lifeguard! It does a good job of reducing humidity. It is also very quiet compared to other dehumidifiers we have. I think this is important! I have connected the hose so that it empties itself. Definitely recommend it to anyone with water problems.
Suitable for family basement
By 'Henna Smith ', Reviewed on 2020-11-23 13:51:51
Love this product. Easy to use and good noise level. Surprised at the amount and speed of water is pumped out of the basement air. I drain the drain into the sink near the basement and run it 24/7. We have recommended this unit to a friend and will buy it again.
Good result
By 'Ihsan Healy ', Reviewed on 2020-11-16 10:39:05
This dehumidifier is the best, easy to understand instructions, and easy to operate. In the cold weather, we had a lot of condensation inside the single-pane window of the back bedroom, and it dripped down and started to grow mold on the wooden window frames. Can't say how long it can last, but it looks very good and it has a 5-year warranty. We set it to 40% humidity and really pump out the water in the air. The bedroom window in the back window is dry. No condensation can be seen in the morning.
Great dehumidifier. It is strongly recommended for large spaces.
By 'Harmony Fitzgerald ', Reviewed on 2020-11-09 11:08:25
I live in southeastern Michigan and I just bought a house with a large basement (>2000 square feet) and it has a mold problem. I borrowed a dehumidifier from my sister and it worked well, so I bought one myself. At first, I installed the dehumidifier, connected the drain hose, and discharged it into a sewage pump. I am satisfied with this matter-it keeps my 2,200 square foot basement always at 40%-45% humidity. When there is no dehumidifier, I find that the humidity is around 70%-75%, which greatly exacerbates the mold problem-you will smell a big difference. Excellent dehumidification effect, especially when draining to the hose.
Very reliable product
By 'Samira Donaldson ', Reviewed on 2020-11-02 10:35:06
This dehumidifier does a great job of keeping the excess moisture in the basement to a minimum! Actually, when my pump failed during heavy rain, I had a small "flood" all night, but when I woke up, the water on the floor was completely dry (the dirt was left behind), and My machine is still running and undamaged.
By 'Robbie Curran ', Reviewed on 2020-10-26 10:48:58
Our basement was damaged by water and the musty smell was really frustrating, so we bought this dehumidifier and it worked very well! I would say that we have a moderately sized cement basement, this product can indeed solve the problem. There is no more peculiar smell or moisture in the air!
Great for me
By 'Avni Mcdermott ', Reviewed on 2020-10-19 10:23:17
This fall, I did an attractive project in the crawl space. My humidity level is close to 90% and I use this dehumidifier to reduce it to 50%. I discharged the hose into the sewage pump. I am happy to use this dehumidifier for the encapsulated grab space. I recommend.
Powerful dehumidifier at a reasonable price
By 'Emmy Taylor ', Reviewed on 2020-10-12 09:14:19
I bought this machine in the newly renovated basement and put a lot of debris in the basement. It rains a lot this year. I am afraid that the smell of the basement will smell like rotten wood. I am also worried that the things I store in the basement will be damaged due to excessive moisture. So I decided to buy a dehumidifier. I compared many dehumidifiers and proceeded. After commenting, I finally chose to buy this machine. It really absorbs a lot of water. Very good product, love it!
Keep the basement area dry
By 'Ellena Dorsey ', Reviewed on 2020-10-05 09:22:55
First of all, this dehumidifier looks so stylish and modern. I like its overall simple design. I bought this dehumidifier in the residential area in the basement of the house. The product has been used for a week after delivery. The unit works effectively. As a comparison, I have another dehumidifier of another brand with similar dimensions, and when the device is turned on at the same time, not much water is collected. The noise level is acceptable. Therefore, I will definitely use this equipment in a larger area and keep the old equipment in a smaller room.
Great unit in wet basement
By 'Lewie Mann ', Reviewed on 2020-09-28 09:02:16
This is a very good unit. Put it in my basement. There is no dehumidifier in the basement for more than a year and there are 2 leaking walls. So it is very humid, and it shows 83% when I set it. In 2 days, it dropped all the way to 45%. The feeling and smell are very different. I set it to drain to the floor drain, and I highly recommend this project. My basement is about 2,300 square feet.


Questions & Answers
What is the capacity of the dehumidifier?

Correa on 2020-12-01 10:01:05

1 Answer

Answered by Alorair
198PPD (Saturation), 90 PPD (AHAM).

1 Answer

Answered by Alorair
Does the device automatically defrost?

Shiv on 2020-11-17 09:15:00

1 Answer

Answered by Alorair
What area range is this machine suitable for?

Trixie on 2020-11-10 10:23:09

1 Answer

Answered by Alorair
Up to 2,600 square feet.
Is a drain hose included with this equipment?

Prisha on 2020-11-03 09:26:58

1 Answer

Answered by Alorair
Answered by Alorair
Yes. The device can dry wet floors in garages.

1 Answer

Answered by Alorair
How to quickly access the pump and mainboard?

Cavan on 2020-10-13 14:33:20

1 Answer

Answered by Alorair
This can be done by loosening the four screws on the equipment access panel. Then, you can remove the screws and remove the pump without removing the control board.
What is the CFM of the dehumidifier?

Nathan on 2020-10-06 11:33:23

1 Answer

Answered by Alorair
Answered by Alorair
You don’t need to do this at all. Because the HDi90 has a condensate pump, the condensate pump can pump the collected water out of the device through a pipe and discharge it to any place without gravity.

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