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
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best dehumidifier
By 'Alice Walker', Reviewed on August 10, 2021
Since I've been working from home after the pandemic outbreak, my basement has become my home office. I haven't been in a basement long enough to notice that it smells, and is a little damp. Due to I need to spend a long time working in the basement, I decided to found a way to solve this problem. This dehumidifier is hands-down the best thing I've bought this year. It removes moisture and odors from the air and provides a good working environment for me. More importantly, it is relatively quiet and does not affect my work at all. Really satisfied with it!
By 'Maisie Jones', Reviewed on August 05, 2021
I was looking for a dehumidifier for my basement. The weather in the summer of the south is humid. I always prefer to "overdo" it than "Underdo" it, even though spending money than what I expect. I've had it running for 3 hours, and it works perfectly. My basement dried very quickly, and it has no musty smell. How powerful capacity the dehumidifier is! And this dehumidifier can collect 90 pints of water per day (115V(80ºF-60%)). I strongly suggest picking this one up.
By 'Xander Green', Reviewed on July 30, 2021
It may be one of the best dehumidifiers I have ever had. This one that I have purchased is amazing. It has a slight hum to it which is very soothing. I love that it comes with a drainage hose, and I love the fact that it's pretty lightweight and easy to move. I highly recommend it. We put the dehumidifier in the center of our house because our home for some reason collects lots of moisture. It is easy to use, and I highly recommend it.
Great product
By 'Rose Ramsay', Reviewed on July 07, 2021
I am really satisfied with the function of the machine, especially these three features: it is small in size and weighs less, compatible with the HVAC system, and can be controlled remotely. It's a really good dehumidifier that you won't want to miss out it.
Amazing product
By 'Abenta Colin', Reviewed on June 28, 2021
This machine is amazing! Took out a huge amount of water from our room. We run for 10 hours and the result is unbelievable. Our room becomes comfortable and fresher than before. No more wet smell, no more wet air, and no more condensation on the windows the next morning. Also very easy to operate.
Efficient, Quiet, Easy to Operate.
By 'Javan Vickers', Reviewed on April 15, 2021
I am impressed with how quiet and efficient this unit is. I have it in a basement that's approximately 2000 square feet, and it has made a noticeable difference in keeping the space drier. The air had a certain flavor to it before because the moisture that would seep in through the stone foundation would linger for an extended period. I don't hear the unit nor has it made a noticeable impact on my electric bill, and I have it running around the clock. It senses the level of humidity in the basement and automatically increases or decreases the fan speed accordingly. I am very pleased with my purchase.
Humidity significantly reduced
By 'Zak Pratt', Reviewed on March 29, 2021
Our thermostats for upstairs and downstairs have been warning us that the humidity in the house was getting above 70%. So we decided to buy a dehumidifier. Noise level, Not much to complain about here. The sound level is what you would expect. I compared the readings of my white noise machine on low and they come up with almost identical readings. Power consumption, in short, I feel that this will be saving us money. If you're looking for a dehumidifier for a large area this will do the trick! Our house is 4000sqft and this sits in the middle of the 2nd floor. The humidity has stayed in check on both upstairs and downstairs thermostats since we started using the device. The combination of price and features made this a good deal to me. Now that I've seen the performance I think it was a great deal!
Quiet and efficient unit
By 'Farrell Franks', Reviewed on March 15, 2021
I need to replace the old dehumidifier that I bought 3 years ago. After a lot of research, I bought this model. The reviews are great and fully functional. Two weeks after installation, I couldn't believe how much moisture was absorbed in the basement. This machine is very quiet, and the attached hose is easy to drain. I am very satisfied with this product. highly recommended.
Excellent dehumidifier
By 'Idris Joyner', Reviewed on March 08, 2021
I like this dehumidifier because it is easy to set up and quiet to operate. This product is very suitable for absorbing moisture from the air. In fact, it can control the humidity between 45% and 50% to maintain the comfort of the house. In the past, we have been fighting the musty/humid odor, but this has eliminated the odor. It is more energy-efficient than our previous dehumidifiers, and deserves to be an Energy Star certified product.
Compact and powerful! Finish the work!
By 'Kiefer Arnold', Reviewed on March 01, 2021
We are very satisfied with the product. The transportation is done in time​​ and is well packed. This unit is very effective and can dehumidify my basement, which is a finished 2400 square foot basement. I have been running for 3 months and the drain hose is great, draining it correctly into the pump, completely dried our damp musty basement without any problems. I highly recommend this product.


Can I use this dehumidifier for garage dehumidification?

Willie on November 15, 2021

1 Answer

Answered by AlorAir
Yes, you can dehumidify the garage with this dehumidifier.
Can this dehumidifier be used for restaurant dehumidification?

Jessica on November 13, 2021

1 Answer

Answered by Alorair
Yes, this dehumidifier can be used for restaurant dehumidification.
I intend to plug a hd90 unit into the timer control power outlet as I need it working on specific hours. Will it turn on automatically and keep settings?

Jay on October 28, 2021

1 Answer

Answered by Alorair
Yes, you would also have to make sure the humidity setting was set low enough. Otherwise, it won't come on. Just curious, since you can set it to a specific humidity level, why not just leave it on a humidity setting, and it'll turn on and off as needed as the humidity varies.
Is this suitable for an indoor pool room?

Claire on October 13, 2021

1 Answer

Answered by Alorair
We don't recommend using our dehumidifier at an indoor/outdoor pool. It will void the warranty.
I want a 220v version - I don't see any way to specify that when I order. How can I make sure that I get the 220v?

Afra on October 07, 2021

1 Answer

Answered by Alorair
The dehumidifier works with both 220v and 115v. You don't need to specify which voltage you desire.
What is the range on the remote sensor?

Zayn on September 26, 2021

1 Answer

Answered by Alorair
This remote controller with Cat5 Cable and is 8 Meter long.

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