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Alorair® Sentinel HDi90 Basement & Crawl Space Dehumidifier(Build in Pump), Capacity: 90PPD (AHAM) 198PPD (Saturation)

4.8 Average

Model : Sentinel HDi90
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$1,299.00 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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Product Information

Key features:

  • Quiet operation.
  • Energy efficient - Super COP Energy Star Listed 2.88L/Kwh.
  • Compatible with Remote Control.  (Notice: sold separately).
  • Ducting options.
  • Hot Gas Valve 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 air flow 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.


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 growth of mold and mildew. According to the America lung association, these are known allergens that can cause respiratory problems and asthma.

All-purpose use:

  1. Capacity. - The sentinel HDi90 is able to remove:
  • 90 pint of water per day(115V(80ºF-60%)
  • 90 liters of water per day (220V(30º-80%)

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

  1. 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 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 level while operational hence will not affect your comfort levels.
  • Defrosting system - The sentinel HDi90 has a hot gas valve defrosting system that increases the efficiency of the dehumidifier, especially in low temperatures.
  • Easy installation and set-up - The sentinel HDi90 allow to 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 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 customer 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),3.95A(220v/50Hz)
COP 2.88L/Kwh(115v/60Hz)
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 HGV Defrosting
Functioning Temperature Range 33~105℉
Functioning Humidity Range 35~95%
Capacity115V(80ºF-60%) 90Pints
Weight 78.0Ibs
Dim(LxWxH) 23.2x15.2x17.7in(590x388x450mm)
Loading quantity 20”:180Sets/40”:412Sets/40”HQ :515Sets

Ratings Summary

95% Recommend this product of 17 responses

17 Ratings
4.8 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN% Complete
2 Stars
NAN% Complete
1 Stars
NAN% Complete
Total: 17 Reviews
Great product
By 'Downs', Reviewed on 2019-12-24 14:34:54
It was pointed out that the smaller versions would possibly have to work much harder or run more of the time to maintain the ideal humidity in the basement. So I purchase the 90PPD (AHAM) capacity for my basement. It does a great job keeping the humidity at what we set and does not run all the time to do so. Always recommend the protection plan on dehumidifiers these days.
Best dehumidifier Yet
By 'Olson', Reviewed on 2019-11-18 10:18:03
Very quiet and easy to setup. I like the continuous mode. It's quiet when it's working. The smell in my basement is gone. I am just fine with my purchase.
Another a second one. It is THAT good
By 'Wilkins', Reviewed on 2019-11-08 14:09:38
We purchased the dehumidifier a week ago. The unit really sucks the moisture out of the house. A good dehumidifier is a necessity to keep in the house especially for the basement and lower floor.
Worth every penny!
By 'Jake', Reviewed on 2019-10-23 10:34:54
We love this dehumidifier! I thought that we just had to live with a damp basement. In one week it dried it up and hasn't been wet since. Even lifted most of the musty odor.
Works great!
By 'Tulisa', Reviewed on 2019-10-14 14:05:12
I purchased this Sentinel HDi90 about 5 weeks ago, we have used it daily. I have a drain in my basement where the dehumidifier is being used so I can do a continuous drain, and don't need emptying the tank once full is very nice.
Great working!
By 'Craig', Reviewed on 2019-10-08 08:33:21
I thought our basement's humidity was over 90%!! This dehumidifier came to work and has kept us dry ever since.
I'm sold on AlorAir dehumidifiers
By 'Connar', Reviewed on 2019-09-28 13:28:02
It's doing a great job pulling the moisture out of our basement and it's been really wet and soggy in here this fall and early winter
Great product overall!
By 'Ridwan', Reviewed on 2019-09-09 10:40:59
We bought the Sentinel HDi90 dehumidifier to replace an old humidifier which was running constantly. lt hopefully reduce the electric bill because so far has run until the specific humidity has been reached and then shut off. The musty feel and smell have been eliminated.
Dehumidifier A1+
By 'Humera Bright', Reviewed on 2019-08-28 08:42:26
First item is courier employees need to look at the arrows on the shipping container and keep the unit pointed up. This is because dehumidifiers have oil in the unit. Anyone buying the unit should leave it standing up for 24 hours before you turn it on so the oil settles back to where it is supposed to be. Unit is working very well for the first week. Like all dehumidifiers, the real question is how long will it last? That is why we purchased the AlorAir protection plan. If the unit goes bad, we will see how well that plan is honored.
Works but has some flaws
By 'Kyra Lisa Duarte', Reviewed on 2019-08-14 09:59:33
My husband has had this in operation for two weeks. Sentinel HDi90 Dehumidifier is quiet and it is removing water vapor far better than our previous unit. However, we do question whether it is operating properly. We will hope to contact a tech person familiar with the proper sequence of operation. I turned it off when I wasn't using it, but the fan kept turning, which is normal, because it stopped after a while, but the machine didn't drain out. I asked the after-sales service and he said it was normal. I do not know at this point but I question whether this is proper operation. Time will tell, I need to get an answer.


Questions & Answers
Answered by Alorair
Thanks, Rory. The Sentinel dehumidifiers are the latest in a series designed specifically for the basement. Sentinel HDi90 is recommended.
Answered by Alorair
Yes, it need reset after a power outage. You can use a timer, but switching the unit on and off for a short time will damage the compressor.

1 Answer

Answered by Alorair
Answered by Alorair

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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

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Email: sales@alorair.com

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