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AlorAir® Sentinel HD90 Basement &Crawl Space Dehumidifier, Capacity: 90PPD (AHAM) 198PPD(Saturation)

5.0 Average

Model : Sentinel HD90
  • +1More
$1,199.00 List Price: $1,250.00

Sentinel HD90 dehumidifier is designed specifically for crawlspaces and basements. Low noise level, great COP,2.88/kwh, and huge capacity 90PPD at AHAM condition.
Control Mode: Wifi Controller
Draining Mode: Gravity Draining

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Product Information

Key features:

  • Supper COP Energy Star Listed 2.88L/Kwh.
  • Continuous gravity Pipe Drainage.
  • Coated Coils with Stainless Side Plate.
  • Hot Gas Valve Defrosting System.
  • Compatible with Remote Control.  (Notice: sold separately).
  • Ducting options for divided spaces
  • Small – compact and portable.
  • Quick access to the main board.
  • Quiet operation.
  • Engineered for low-temperature operation.
  • Laundry mode.


The sentinel HD90 is a high capacity dehumidifier. It is ideal for tight spaces dehumidification. These spaces may include:

  • Crawlspaces,
  • Attics.
  • basements.

This unit is design and built to stimulate air circulation while operational, this is the main reason the sentinel HD90 is able to produce superior results in this space.

The sentinel HD90, however, offer you a wide range usability application. The sentinel HD90 is built small – compact and portable with heavy-duty straps for ease movement. Since this unit can cover a wide space that extends up to 2,600 square feet, it can, therefore, be deployed in:

  • households.
  • Shops.
  • Storage areas.
  • Garages.
  • Restoration work.
  • Industrial institutions.
  • Laboratories.
  • Offices.
  • Restaurants or bars.
  • Museums or sports halls.

Generally, in any space that requires humidity levels to be regulated.


Humidity is the cause of dampness, stuffiness or odor in the basement or crawlspace. Failure to control the humidity levels with not only cause structural damage like wood rot or wood warping, but will also create the perfect environment for allergens like mold, and mildew to grow.

Most homeowners tend to ignore the humidity levels in the crawlspace or basements, however, research from the American Lung Association has proven that moisture, odor, and allergens in these spaces can easily spread out to the entire house.

all-purpose use:

  1. Capacity. - The sentinel HD90 is able to remove at least:
  • 90 pints of water per day at 115V(80ºF-60%).
  • 90 liters of water per day at 220V(30º-80%).

This is very impressive comparing the sentinel HD90 is the same size as the Sentinel HD55.

  1. Performance. - The sentinel HD90 is built to provide you with superior result fast. It combines the following features:
    • Air filtration - The sentinel HD90 is equipped with easy to clean filters that are used to trap any mold spores and other Impurities in the air.
    • Auto humidistat - The sentinel HD90 is equipped with an advanced humidity sensor that is able to notice changes in humidity levels in the bypass air design reducing short cycling and saving energy.
    • Quick internal access - The sentinel HD90 can be easily disassembled in under a minute, for easy service and maintenance.
    • Remote control - The sentinel HD90 will allow you to remotely adjust the dehumidifier setting remotely without having to do it manually on the unit. This makes it easy to control humidity in a tight space. (Sell separately
    • Plug and play – At Alorair we have built and designed the sentinel HD90 to be an easy plug and play appliance you don’t need to have any technical knowledge to operate this unit. All available installation modes are easy and don’t require a technician.
    • Duct options - The sentinel HD90 allows you to provide focus dehumidification or dehumidification in different space without moving the dehumidifier.


  1. Warranty – The sentinel HD90 has an extended 5 years warranty.

At our state-of-the-art production facility, our engineer's design and carefully built the Sentinel HD90 to perfection. Every unit is thoroughly tested and proven to 100% effective at lowering humidity levels.

  1. Support – At Alorair we have a dedicated support team, that is available 24/7 to our customers via email, phone or live chat. We are dedicated to ensuring that all our customers using any of our product like the sentinel HD90 get instant support when they encounter any challenges.

Make increased indoor humidity a problem of the past! Invest in the sentinel HD90 today!

Power 115V/60HZ,220V50HZ
Current 5.5A(115v/60Hz)
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
Wheel Adjustable Wheel
Draining Gravity Draining
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

100% Recommend this product of 11 responses

11 Ratings
5.0 Average
5 Stars
500% Complete
4 Stars
NAN% Complete
3 Stars
NAN% Complete
2 Stars
NAN% Complete
1 Stars
NAN% Complete
Total: 11 Reviews
Excellent purchase!
By 'Abdul Davey', Reviewed on 2019-08-12 04:26:04
I live in humid TX and decided the 90pints dehu would help me smell better in the basement, it is helping. Here's the second part of the review. I've had the unit for a week. The unit is very quiet. In a quiet room, I can't hear it 2 feet away. Up closer you can hear air rushing through the vents.
It is more effective than our expected
By 'Jad Mustafa', Reviewed on 2019-07-24 20:59:53
We have a basement is moldy, musty smell, and stale air down there. Our big washer located there and so I make several trips downstairs every week. It does its job well! AlorAir delivered this item in record time ( I think 5 days) for a shipping cost. I was impressed since it weighs about 50 pounds with all of its boxes. Requires two people to remove from box as it has to be lifted vertically. The alternate for one person is being very cautious with a case cutter to slice the box corners without cutting too deep. Now I feel like I just opened up a huge addition to my house which before, I could not bear to enter.
Awesome Dehumidifier
By 'Isabelle Guest', Reviewed on 2019-07-04 19:04:09
Alorair Sentinel HD90 is pretty good! Our basement was plagued with black mold. The little dots would appear along the tops of the walls shortly after I'd scrubbed them or painted over them, and then returned to its original again a few weeks later. Now that things have changed, it is performing well and flawlessly. I am pleased to see that the walls are now clean for a long time when it is running. Highly recommend this product and Alorair.
This Sentinel HD90 dehumidifier works like a champ
By 'Bill Esparza', Reviewed on 2019-06-27 04:38:59
I'm glad I bought the appropriate size, it does the job fine and is easier to empty in my basement.
Doing great to keep the humidity at a reasonable level in my basement
By 'Ingrid Pike', Reviewed on 2019-06-25 19:17:43
I bought the Sentinel 55 pint first, then bought a Sentinel 90 pint too. The HD55 seems to run well....if considering a purchase I would recommend the 90 pints. I have the 90 in my small basement. Now the air in my basement smells much nicer when I went in. I highly recommend this machine if your basement is too humid.
Big things DO come in small Packages
By 'Ly Rio Searle', Reviewed on 2019-06-20 17:11:07
It’s just a quiet hum. I could not put up with the other dehumidifiers in my basement but this one does not bother me at all.
Nice unit.
By 'Sharon Lott', Reviewed on 2019-06-16 20:51:33
There's a little bit of noise but it's acceptable. If you are using this dehumidifier in a living room or basement space, highly recommend; it's doing a great job of keeping moisture down. 
Good quality
By 'Mehreen Crane', Reviewed on 2019-06-03 18:10:36
Great quality, nice a smooth running and quiet. Push buttons are easy to use and solid. A+
Excellent customer service!
By 'Antony Bate', Reviewed on 2019-05-31 19:14:22
For years my basement that was plagued with black mold due to excessive humidity. The Sentinel HD90 dehu works effectively and is easy to use. The auto defrost does work well. You need not babysit it.
Work as GREAT!!
By 'Ava-Mai', Reviewed on 2019-05-30 18:13:08
Our basement is very damp and the things are not easy to store. That's so good for a small room that my wife needs. Arkansas weather makes her knees hurt sometimes. And feel a lot better now!


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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.

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Tel: (888) 990 - 7469

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

Email: [email protected]

Web: www.alorair.com

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