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.

Highlight: Energy Star Certified/ 5 Years Warranty/ MERV-1 Filter/ Automatic Defrost/ ETL certified/ Optional Remote Control

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Product Overview

Product Overview
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 to saving energy cost without sacrificing performance, functionality and comfort
· Ultra-compact design with super performance
· Adjustable foot pad and portable handle to transport and install easily
· MERV-8 filter to protects 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 temperature (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 115V/60HZ
Current 5.56A
COP 2.69 L/ Kwh
Size For Up to 2,600 sq.ft.
Filter Clean Air Filter,HEPA,MERV-8
Air flow 210 CFM,350 CMH
Sound Pressure Level <58 dBA
Refrigerant R410A
Draining Condensate Pump
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”:90Sets 40”:192Sets 40”HQ :256Sets

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. Although a conventional dehumidifier, it does not shy away from producing constant high-quality results which an LGR is known for


With its ergonomic design that eases its ability for frequent transportation and usage, its sturdy housing that expertly protects its internal components, and its overall caliber, the AlorAir Storm Ultra LGR Commercial-Grade Dehumidifier has been one of the top choices for various applications such as:

· Flood restoration
· Furniture Drying
· Carpet Drying
· Laundry Drying
· Painting Projects
· Humidity Control for : Garages/Warehouses/Basements/Crawl Spaces/Shops/Restaurants/Bars/Museums/Sports Hall/Computer Rooms/Computer Rooms/Computer Rooms/Cellars/Offices/Laboratories/Food Storage

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 may use a foaming coil cleaner for cleaning the coils
· Confirm that the cords are cleaned from any debris and are properly wrapped and secured for storage
· Make sure to properly dry it before storing
· If the unit gets flooded, make sure you completely let it dry by carefully opening it before attempting to reconnect it
· Seek professional help for other complex issues
· Never use the unit as a support or stepping stool when reaching high items

Make sure to read the manual and all other guides before using your dehumidifier, or any product for that matter. It is always better to be equipped with all essential information beforehand to reduce the risk of accidents and mishaps.

Reviews & Queations

98% of customers recommend this item

89 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN% Complete
2 Stars
NAN% Complete
1 Stars
NAN% Complete
Great dehumidifier!
By 'Gwen Burch', Reviewed on 2020-09-21 13:44:02
Great! Our basement was flooded, mold began to grow, and the smell was unpleasant! We cleaned the basement and threw away the destroyed things, but it was still bad. So searched and found this basement dehumidification product. Comments are also very helpful. We got it and activated it within a few days. Within a few hours, all the odors disappeared and the basement was almost dry after 3 days.
Excellent dehumidifier!
By 'Asif Tran', Reviewed on 2020-09-14 11:51:56
It arrived on time and was well packed without damage. We let it sit for 24 hours and then use it as directed. Since then, it has worked perfectly in our basement, cleared a lot of water, and mold has not grown again. We are very satisfied with this. Great product and great price. We are happy that the house is protected.
Humidity drop
By 'Pranav Paine', Reviewed on 2020-09-07 11:41:17
I purchased this product to reduce the humidity in our basement storage room, which has an outward door. Humidity causes mold. I got this unit and the initial reading was about 70%. It drops to 50% in a short time. The feel and smell of the room are better. The device comes with a drain pipe. So far so good. I would recommend this product based on the first three weeks of use.
Very satisfied with Sentinel HDi90 dehumidifier
By 'Ksawery Christian', Reviewed on 2020-09-01 12:01:44
This Sentinel HDi90 dehumidifier is stylish and easy to use! Easy to use! The easiest setting is to plug it in and open it. The shell is very strong, very strong! For those who want to run continuously, you can connect a drain hose, which is very quiet and attractive! My house can't smell musty when it rains.
Products worth buying
By 'Artur Lee', Reviewed on 2020-08-24 14:51:52
I am very satisfied with this product. Recently, there was a water problem in my basement and I needed a reliable fast working machine. This unit pumps water out of the air so fast, so I connected a continuous drain hose to my sewage pump. Indeed, it did absorb about 90 pints of water from the air within 24 hours. Now that my basement is dry, I can rely on it to work well.
Efficient (to date) reliable dehumidifier with pump
By 'Ali Bartlett', Reviewed on 2020-08-17 14:51:11
We purchased the dehumidifier and installed it in a crawl space with high humidity. Therefore, choosing a dehumidifier with a pump can keep running without having to manually empty the bucket. The dehumidifier is installed in a central location, and the (pump) hose is drained to the floor drain by connecting to the drain pipe. So far, it can perfectly keep the space dry, most of the time we are not close to the dehumidifier, so my evaluation of the noise level is not high. Overall, we are very satisfied with this purchase.
Excellent dehumidifier
By 'Briana Mcfarlane', Reviewed on 2020-08-11 09:43:23
After moving to a new home, we found that the humidity level was always high, especially in the sweltering summer months. I purchased a separate hygrometer to verify the measurement results, and the humidity level exceeds 60%. I started to research options and found the Sentinel HDi90 dehumidifier. The equipment was purchased from Amazon and received in time as promised. We have been running 24/7 since the purchase. The effect is amazing. There is no problem maintaining the humidity at 45%, and it is very easy to drain the water. This unit is recommended.
Super quiet, efficient, amazing quality
By 'Varun Byrne', Reviewed on 2020-08-03 15:04:47
This is the second dehumidifier we have, wow, it is much better than the first. The pump works well and drains quietly and efficiently into a nearby bathroom sink. And easy to install and set up. We put it on the first floor and it does improve the air quality. We would definitely recommend this dehumidifier to anyone.
Large capacity, quiet
By 'Kareena Dyer', Reviewed on 2020-07-27 14:22:58
I bought it based on its capacity and the fact that it runs quietly. I have a medium-sized basement, but the humidity has been high since summer. We have just experienced heavy rain for a few weeks. Fortunately, my underground is not flooded. Our drainage system is very good. This machine can solve the problem and reduce the humidity to a comfortable level. The operation is simple, and the drainage is easy to do.
High-quality products, recommended
By 'Bill Wilkerson', Reviewed on 2020-07-21 11:04:50
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.


Is there a remote control available for this device?

Leigha on 2020-12-22 13:15:07

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier can be remotely controlled by a wired remote control, which is sold separately. Thanks for your question!
Is the dehumidifier equipped with a washable filter?

Sufyan on 2020-12-15 08:59:42

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier has a washable filter that can trap mold spores and other air impurities, thereby improving indoor air quality. Thanks for your question!
What is the working humidity range of this dehumidifier?

Brielle on 2020-12-08 09:34:52

1 Answer

Answered by Alorair
Hello, the working humidity range of the Sentinel HDi90 dehumidifier is between 35% and 90%. Thanks for your question!
What is the capacity of the dehumidifier?

Correa on 2020-12-01 10:01:05

1 Answer

Answered by Alorair
Hello, the water removal capacity of the Sentinel HDi90 dehumidifier is 198 PPD at saturation condition and 90 PPD at AHAM. Thanks for your question!
What is the operating temperature range of this device?

Serena on 2020-11-24 10:32:39

1 Answer

Answered by Alorair
Hello, the working temperature range of the Sentinel HDi90 dehumidifier is between 33.8℉~104℉. Thanks for your question!
Does the device automatically defrost?

Shiv on 2020-11-17 09:15:00

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier has an automatic defrost system, which can remove ice from the coil and maintain the efficiency of the equipment. Thanks for your question!
What area range is this machine suitable for?

Trixie on 2020-11-10 10:23:09

1 Answer

Answered by Alorair
Hello, the dehumidification range of the Sentinel HDi90 dehumidifier is up to 2,600 square feet. Thanks for your question!
Is a drain hose included with this equipment?

Prisha on 2020-11-03 09:26:58

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier comes with a drain hose. Thanks for your question!
Can Sentinel HDi90 be used in garages to prevent car tires from slipping?

Viaan on 2020-10-27 11:55:03

1 Answer

Answered by Alorair
Hello, the Sentinel HDi90 dehumidifier can be used in the garage to reduce humidity. To prevent the garage floor from being wet and prevent the car tires from slipping. Thanks for your question!
What is the energy efficiency ratio of the device?

Makayla on 2020-10-20 09:25:38

1 Answer

Answered by Alorair
Hello, the energy efficiency ratio of the Sentinel HDi90 dehumidifier is 2.69L/Kwh. Thanks for your question!

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