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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
$1,199.00 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

96% Recommend this product of 39 responses

39 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: 39 Reviews
Moist space suitable for basement
By 'Kareem Salas ', Reviewed on 2020-06-30 08:25:43
I'm very happy! Sentinel HDi90 works very well in the basement, it works better than my old dehumidifier. Summer in Florida is humid and the basement is poorly ventilated. Using the Sentinel HDi90 for a week, the basement is no longer humid and the indoor air quality is improved.
More superior design
By 'Aishah Krueger ', Reviewed on 2020-06-23 07:57:42
Unlike most dehumidifiers, Sentinel HDi90 has a coated coil with stainless steel side plates, which not only extends the life of the machine but also significantly improves the dehumidification efficiency. This is why I chose to invest in it.
Don't miss the purchase
By 'Jess Montes ', Reviewed on 2020-06-13 08:42:24
A very easy-to-use basement dehumidifier with a pump combines many different functions, effectively improving its dehumidification efficiency. I believe anyone will be satisfied with its extra features.
Efficient and effective
By 'Aahil Cameron ', Reviewed on 2020-06-06 13:46:18
We moved into a new house but encountered moisture and mold problems. Therefore, we consider using a dehumidifier to solve all these problems. We waited a week to get this AlorAir® Sentinel HDi90. Fortunately, it was intact. We quickly put it into use. By connecting a hose, we can see that there is water flowing out, and a lot of water is discharged in one day.
Expect better
By 'Latisha Philip ', Reviewed on 2020-05-29 19:23:51
I have been using this basement dehumidifier for a week, and I do n’t think it is the best for me. It drains through the condensate pump and has a low-temperature operation. It is worth noting that it is powerful. I ’m not sure if it ’s going to malfunction strangely, I hope it ’s best not to happen, and if anything goes wrong, I will update it.
Worth trying
By 'Anum Ahmad ', Reviewed on 2020-05-22 15:48:30
As a homeowner, we should be responsible for our basement. Just as you love your own room, the basement needs to maintain dry air to prevent damage to the structure of the house. This AlorAir® Sentinel HDi90 basement dehumidification equipment absorbs moisture from the air in my basement space to reduce humidity. It has a hot air valve defrosting system, perfect without worrying about low temperatures affecting its operation.
Easy-to-use, energy-saving equipment
By 'Angelo Heaton ', Reviewed on 2020-05-16 10:09:13
I really like AlorAir® Sentinel HDi90, which is an energy-efficient dehumidifier device. The most important thing is that this model has a built-in condensate pump that can use pipes to continuously drain the water collected by the device. The location is very important.
Helped me a lot
By 'Misty Clark ', Reviewed on 2020-05-08 09:47:03
This Sentinel HDi90 basement dehumidifier is my life-saving straw. When I cleaned the basement last week, I found a serious problem with a lot of mold under the carpet. I had to clean the carpet and floor for this. I used a dehumidifier and air mover to dry and dehumidify, and now there is no sign of mold.
Great machine
By 'Murray Gilbert ', Reviewed on 2020-05-05 09:43:33
This AlorAir® Sentinel HDi90 basement dehumidifier does not take up much space and operates quietly. So far, I love this dehumidifier! Easy to install and simple to use.
Good assistant for repair work
By 'Ayoub Hilton ', Reviewed on 2020-04-30 09:55:07
I am a water repair expert. A few days ago, I took this recently purchased 90-pint basement dehumidifier with a pump to the customer ’s home to solve her moisture problem. Within about a day, the humidity dropped to 45%. Very Glad I have the same good tools, which makes me more confident.


Questions & Answers
How much noise does the HDi90 make?

Kayla on 2020-04-27 15:59:16

1 Answer

Answered by Alorair
Less than 58DB.
Answered by Alorair
Please kindly find our hose size for Sentinel HDi90: Inside Diameter: 6 millimeters; Outer diameter: 10 millimeters.
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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Customer Support:


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

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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