AlorAir Basement/Crawlspace Dehumidifiers 198 PPD (Saturation), 90 Pints (AHAM), 5 Years Warranty, Condensate Pump, Auto Defrosting, Rare Earth Alloy Tube Evaporator, Remote Control (optional)

Model : Sentinel HDi90

4.9 Average

$1,147.11 List Price: $1,550.00


AlorAir Sentinel HDi90 dehumidifier with high COP is always a popular choice for large residential and commercial restoration projects! Not only does this unit offer higher efficiency, lower energy consumption ,and more reliability, but it also features a heavy duty condensate pump that makes draining faster and easier.

Highlights: ENERGY SRAR certified/5 Years Warranty/ MERV-1 Filter/ Automatic Defrost/ cETL certified/ Optional Remote Control

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Product Overview


AlorAir Sentinel HDi90 Conventional Dehumidifier 
Another sought-after dehumidifier that is best used for basements and crawl spaces is the AlorAir Sentinel HDi90 Conventional Dehumidifier. It is proven to extract all excess moisture without incurring a high electricity consumption. This makes it advantageous to both you and the environment.


· ENERGY STAR Certified - This unit can remove moisture quickly and efficiently with less energy than traditional dehumidifiers, which can save money and won't increase the energy bill.
· Ultra-compact design with super performance
· Adjustable foot pad and portable handle to transport and install easily
· Optional MERV-8 filter to protect internal components from damage from dust and other particles
· Heavy-duty built-in condensate pump to automatically drain water to any designated location
· Rare earth alloy tube evaporator to avoid freon leakage and prolong the service life of the coil
· Auto defrost technology to allow operation at low temperatures (36 degrees Fahrenheit)
· cETL Certified to withstand more rugged conditions 
· Precise humidity maintenance to automatically maintains your ideal humidity level from 36% to 90% 
· Automatic diagnosis system to get troubleshooting tips through error codes
· Auto Restart to automatically restart to previous settings after a power outage
· Easy to use graphical control panel
· Optional remote control for remote sensing and control areas
·  Supply duct optional


1. Protection from Diseases – Environments with high humidity are where harmful microorganisms live and harm the surfaces they reach. Their small size is often deceiving as they are able to be highly detrimental. Without proper extraction and prevention, they can bring various health risks such as allergies, skin irritations, respiratory illness, and immune-related diseases. Another harmful group that brings health risks are mosquitoes. They, too, thrive in humid places. They have the ability to infect a person with malignant diseases such as dengue or malaria. Fortunately, the use of a dehumidifier is the best proven way to prevent their growth and damaging effects.
2. Economical and Cost-Effective: Purchasing a dehumidifier is one of the best investments a person can make. It is designed to operate optimally with only a conservative use of energy. Moreover, with its long-term benefits, you are certain to have the most reliable prevention on common damages that take place because of excess moisture. Thus, investing on a dehumidifier saves you both time and money without having to do much.
3. Optimal Restoration Assistance – Because of its superb features and specifications, users are assured to obtain maximum performance to ease their restoration job. It is portable, durable, and very reliable when it comes to heavy water damage restoration projects.
4. Protection of Properties Against Damage – As the dehumidifier creates the most suitable breathing atmosphere to your home, it simultaneously keeps it inhospitable for harmful microorganisms to thrive and harm your valuables. You would not need to worry about molds in your clothes or shoes, damaged electrical wirings, and other related issues that come from having excess moisture.
5. Prioritized Safety Due to Prevention of Structural Issues – Accidents can be widely prevented when you have the constant effect of a dehumidifier at home that prevents excess moisture from weakening your home’s structure and foundation.
6. Conducive Work Place for Higher Productivity – It is a proven fact that a workplace is positively affected by its favorable breathing atmosphere. By providing a clean and safe ventilation, employees are certain to provide optimal productivity and benefit from each other’s motivated work ethic.

So, whether you are a homeowner or a business enthusiast, investing in a dehumidifier will surely provide you with all these benefits in your daily life.

More so, this and all of our dehumidifiers are supported by a dependable warranty coverage which you can check out in this website as well. For more inquiries, do not hesitate to contact any of our customer service representatives. We are more than happy to help you make a decision for your dehumidification needs.

Power 115 V/60 Hz
Current 5.56 A
COP 2.69 L/ Kwh
Size For Up to 2,600 Sq.Ft.
Filter MERV-1 ( Optional MERV- 8)
Air flow 210 CFM,350 CMH
Sound Pressure Level <58 dBA
Refrigerant R410A
Draining Pump Draining
Defrosting Control System Automatic Defrosting
Functioning Temperature Range 33.8~104℉
Functioning Humidity Range 36~90%
Capacity115V(80ºF-60%) 90 Pints
Shipping Weight 70.5 Ibs (32 kg)
Dim(LxWxH) 23.2 x15.2 x17.7 in
Loading Quantity 20': 144 Sets ; 40': 292 Sets ; 40'HQ: 365 Sets

AlorAir Sentinel HDi90 Conventional Dehumidifier

Considering its impeccable features and specifications, this particular unit can be considered very competitive in the market, both for residential and commercial restoration projects. While a traditional dehumidifier, it doesn't shy away from producing the consistently high-quality results that LGR is known for



The AlorAir Storm Ultra LGR commercial grade dehumidifier features an ergonomic design for frequent transport and use, a sturdy housing that professionally protects its internal components, and an overall caliber that has made it one of the first choices for a variety of applications such as:

· Flood restoration
· Furniture drying
· Carpet drying
· Clothes drying
· Paint project
Humidity Control: Garage/Warehouse/Basement/Crawling Space/Store/Restaurant/Bar/Museum/Gym/Gym/Computer Room/Computer Room/Computer Room/Cellar/Office/Lab/Food Pantry


Proper use and maintenance

Every dehumidifier needs proper usage and maintenance to support its long-lasting capability. Here are some safety tips for using and maintaining it:
· Before using it, keep it steady in an upright position for about 30 minutes to allow the refrigerant and other internal components to settle
· If the unit is newly delivered, let it settle for about 12 hours before using it
· Make sure that your desired area is well-sealed by either shutting all windows, vents , or using other barriers
· It must be connected to a grounded electric source to avoid accidents and damage
· Make sure you have the right power supply to avoid electrical issues
· It is not suggestible to use an extension cord as well as a power adaptor
· Use the control panel or remote to set your desired level of humidity
· The surface in which it is set to operate must be leveled and steady
· Do not position the discharge and inlet onto a wall
· Never tamper with the internal components while the unit is running
· Always maintain a 6ft. distance from any form of obstruction
· Avoid deploying it in areas with a high amount of corrosive materials
· Make sure to properly unplug it before deploying it to another area
· Never leave it plugged when not in use
· When cleaning, use a damp cloth dipped in mild soap solution in wiping its exterior
· Remember to check the inlet and outlet for any blockages
· Annually check up the coils for maintenance

· You can use a foam coil cleaner to clean the coils
· Verify that the power cord is free of any debris and is properly wrapped and secured for storage
· Make sure it is properly dried before storing
If the device is submerged, make sure to turn it on carefully and let it dry completely before attempting to reconnect
· Seek professional help for other complex issues
Do not use the unit as a support or step stool before attempting to reconnect it

Be sure to read the manual and all other guidelines before using your dehumidifier or any related product. It is best to have all the important information ready in advance to reduce the risk of accidents and incidents.

Reviews & Questions

98% of customers recommend this item

90 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN% Complete
2 Stars
NAN% Complete
1 Stars
NAN% Complete
High-quality products, recommended
By 'Bill Wilkerson', Reviewed on July 21, 2020
I recommend anyone try to use this device to repair the water damage in the home and get better service. Sentinel HDi90 covers a dehumidification area of 2,600 square feet at a reasonable cost, so you can also save money. Alorair provides super fast delivery and great service.
The right choice
By 'Eloise Patrick', Reviewed on July 13, 2020
Sentinel HDi90 left a deep impression on me! It's better than I expected, it's simple to install, all options are great, and you can control it properly. This high-quality dehumidifier provides a very easy and convenient operation, without complicated and difficult to understand instructions, it is worth recommending.
Outstanding performance
By 'Judy Mccabe', Reviewed on July 06, 2020
Seeing the capabilities of the Sentinel HDi90 dehumidifier from a friend, consider buying one for the basement. I got it within five days after Amazon placed the order, which is quiet and lightweight. And the remote control device is additionally purchased, which is convenient to operate.
Moist space suitable for basement
By 'Kareem Salas', Reviewed on June 30, 2020
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 June 23, 2020
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 June 13, 2020
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 June 06, 2020
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 May 29, 2020
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 May 22, 2020
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 May 16, 2020
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.


How to quickly access the pump and mainboard?

Cavan on October 13, 2020

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 October 06, 2020

1 Answer

Answered by Alorair
Hello, the air flow of the Sentinel HDi90 dehumidifier is 210CFM. Thanks for your question!
Can I put this dehumidifier on a shelf so that gravity works downward through the drain hose?

Haris on September 23, 2020

1 Answer

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.
What is the use of a condensate pump?

Ashley on September 08, 2020

1 Answer

Answered by Alorair
The main job of the pump is to force water into the drain. This means that every time the water level rises, the user does not need to empty the dehumidifier.
Does the dehumidifier stop working when it reaches a certain water level?

Bibi on September 02, 2020

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier is equipped with a condensate pump. When the water reaches a certain level, the dehumidifier will not stop working, it can work continuously. Thanks for your question!
What is the weight of this unit?

Evelina on August 25, 2020

1 Answer

Answered by Alorair
Hello, the weight of the Sentinel HDi90 dehumidifier is 85.9Ibs. Thanks for your question!
What is the size of this unit?

Courtnie on August 18, 2020

1 Answer

Answered by Alorair
Hello, the size of the Sentinel HDi90 dehumidifier is (LxWxH): 23.2x15.2x17.7 inches. Thanks for your question!
What type of refrigerant does this equipment use?

Emilie on August 11, 2020

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier is equipped with an environmentally friendly R410A refrigerant. Thanks for your question!
What is the warranty period of this machine?

Jareth on August 05, 2020

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier has an extended 5 years warranty. Thanks for your question!
How many amps does it use?

Sultan on July 28, 2020

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier uses 5.56A in the 115V/60 Hz circuit. Thanks for your question!

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