AlorAir Sentinel HD90 Conventional Dehumidifier, Capacity: 198 ppd (Saturation 90°F - 80%), 90ppd (AHAM 80°F - 60%)

Model : Sentinel HD90

4.9 Average

$1,047.11 List Price: $1,250.00

Compared to other similar products on the market, Sentinel HD90 has always been more advantageous due to its heavy-duty components and energy-saving feature. It has a powerful capability of dehumidification and can be strategically ducted in a different room/area.

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

Buy on Amazon is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Additionally, participates in various other affiliate programs, and we sometimes get a commission through purchases made through our links.
Product Overview

Product Overview
This is one of the most reliable dehumidifiers in the market. While it is also applicable for commercial use such as in office spaces, it is being widely used for basements and crawl spaces. This is mostly due to its stable and steady performance without incurring too much noise and electrical consumption. Homeowners are able to save while enjoying its dehumidifying capabilities.

Especially in a home with children and elderlies, it is important to maintain the safest indoor air quality to support their fragile health. This can be done by the use of a reliable dehumidifier. It will do its job of extracting excess moisture which is the reason for having a habitable environment for molds and other harmful entities that bring allergies, skin irritations, respiratory issues, and other immune-related diseases.

Compared to other similar products in the market, the AlorAir Sentinel HD90 Conventional Dehumidifier has always been more advantageous because of its heavy-duty features. It has a powerful dehumidification capacity and can be strategically ducted in a different room/area.


· Built with an automatic defrosting system
· Energy Star certified
· Has a high COP
· Has a remote humidistat feature
· Gravity drained
· Equipped with a rare alloy tube evaporator
· Ergonomically designed for easy dismantling
· Has a rotary compressor
· Proven to extract the maximum amount of excess moisture even in environments with low humidity
· Has an intelligent power-off memory protection
· Can be remotely controlled (Remote is separately sold)
· Has a compact design
· Supply duct optional Applications

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 Sentinel HD90 Conventional 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
 • Bars
    • Museums
• Sports Hall
 •  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 in 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 suggestable 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 levelled and steady
· Do not position the discharge and inlet onto a wall
· Never tamper on the internal components while the unit is running
· Always maintain a 6ft. distance from any form of obstruction

· Avoid deploying it in areas with 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 cleanser for cleaning the coils
· Confirm that the cords are cleaned from any debris and is 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 for 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.

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 2.69L/K
Size For Up to 2,600 sq.ft.
Filter Pre Filter (Optional MERV-8 Filter)
Air flow 210 CFM,350 CMH
Sound Pressure Level <58 dBA
Refrigerant R410A
Draining Gravity Draining
Defrosting Control System Automatic Defrosting
Functioning Temperature Range 33.8~104℉
Functioning Humidity Range 36~90%
Capacity115V(80ºF-60%) 90Pints
Weight 67.2 Ibs (30.5kg)
Dim(LxWxH) 23.2x15.2x17.7 in
Shipping Dim (L x W x H) 28.9 x19.3 x 20.4 in
Loading quantity "20”:90Sets 40”:192Sets 40”HQ :256Sets"

AlorAir Sentinel HD90 Conventional Dehumidifier

Compared to other similar products in the market, the AlorAir Sentinel HD90 Conventional Dehumidifier has always been more advantageous because of its heavy-duty features. It has a powerful dehumidification capacity and can be strategically ducted in a different room/area.

Because of its high customer rating, not only is it being chosen for residential use, but also for commercial restoration projects.


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 Sentinel HD90 Conventional 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
       • 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 in using and maintaining it:

Before using it, keep it steady in an upright position for about 30 minutesto 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 suggestable 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 levelled and steady
• Do not position the discharge and inlet onto a wall
• Never tamper on the internal components while the unit is running
• Always maintain a 6ft. distance from any form of obstruction
• Avoid deploying it in areas with 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 cleanser for cleaning the coils
• Confirm that the cords are cleaned from any debris and is 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 for 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

95 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN% Complete
2 Stars
NAN% Complete
1 Stars
NAN% Complete
Amazing dehumidifier!
By 'Lena Acosta', Reviewed on 2021-02-07 11:18:17
This is really an amazing dehumidifier, it works very well, it is very quiet, the device is not too bulky and easy to use. We use it in the basement to control the humidity there and connect the supplied hose for automatic drainage. It has been in existence for several months and can maintain humidity at around 50% without problems. I highly recommend this product.
Satisfied with our purchase
By 'Charlize Morton', Reviewed on 2021-02-01 13:43:32
This is an effective dehumidifier, suitable for our basements above 2000 square feet. We have been using it for more than two months, essentially plugging it in and forgetting it. It has reduced the humidity to a comfortable level, which greatly reduces the musty smell. The noise level is so small that we don't pay much attention. If needed, I will buy it again.
The product is very effective
By 'Elsie Wagner', Reviewed on 2021-01-25 14:26:32
The product really works. I use it in a basement where the air is very humid and full of moisture. My office is in the basement and I stay there most of the time. When I realized that the office was humid, I decided to buy a dehumidifier. I read a lot of reviews and finally ordered the product. I am very happy. Since using this product, the air is obviously less humid and the environment is more comfortable. The dehumidifier does not take up much space and is very easy to install and use. It does not make a lot of noise, I just hope to buy it sooner. I would recommend it to anyone.
Well-made dehumidifier
By 'Wasim Wood', Reviewed on 2021-01-18 11:52:36
After noticing the mold, we purchased this unit for the basement. We have conducted a lot of research and found that this is in line with our needs and price point. We are very satisfied with the purchase. We used it in a finished basement with an area of 1,800 square feet, and the amount of water pumped out far exceeded our expectations. The smell and musty smell disappeared. Glad we purchased this equipment.
Do this job
By 'Hisham Bright', Reviewed on 2021-01-11 13:43:42
We use it in basements with high humidity. The difference on the second day is huge. I connected the drainpipe to the floor drain with a hose and kept pouring water into it. I know there is some moisture in the basement, but I don't know how much until I use it. The device is quiet and very easy to use and move. Value for money.
Really efficient
By 'Reuben Downs', Reviewed on 2021-01-04 11:09:58
I absolutely love this dehumidifier! It can reduce the humidity in my basement from 70% to 50%! Very quiet and easy to operate. I let it work in continuous mode, connect the hose and drain water continuously. I like the coil defrost function, which makes it work properly at low temperatures.
Powerful dehumidifier
By 'Samera Knights', Reviewed on 2020-12-28 10:57:46
It doesn't sound at all. Much quieter than my previous dehumidifier. It is very good, it can suck water from the air and make my basement dry. Don't worry about the price, you will get everything you need to pay, and I have never regretted my purchase once. I have been using it for 6 months and it will remain strong even if I use it almost constantly.
We like it!
By 'Nadeem Benitez', Reviewed on 2020-12-21 13:20:52
This 90-pint dehumidifier did meet my expectations. Before buying, I did a lot of research and found that this is exactly what we need. We use it in the basement, which can maintain humidity well. I started storing some wood and some books without worrying about mold. recommended!!!
Good performance and easy to set up
By 'Yazmin Dejesus', Reviewed on 2020-12-14 09:18:38
The Sentinel HD90 dehumidifier can remove moisture quietly. Very quiet during operation. good results. It is very simple to set up and use. It can move the air easily. And you don't need to empty the water tank. Very suitable for basements and crawl spaces. Overall, it is highly recommended.
Great value
By 'Ronny Ratliff', Reviewed on 2020-12-07 10:26:35
This dehumidifier works well. Since there is only gravity drainage (no pump), I had to place the dehumidifier above the drainage connection. I like the transparent tube, so you can see the water flowing. I can check to make sure it works.


Is the pump disposing of the collected humidity from the space or the condensation from the compressor?

Leif on 2021-09-19 09:27:08

1 Answer

Answered by Alorair
The evaporator drains moisture into the pump, which drains moisture out of the unit. The pump helps to lift the water up to 5 meters if you are draining upwards.
Where is the air taken in and where is it exhausted? I want to install it behind the grill on the wall, or hide it in some way.

Dark on 2021-09-13 13:53:17

1 Answer

Answered by Alorair
The air is sucked into the unit from the front panel (black) and blown out on the right side. You need to ensure that the unit has good air following conditions, and the air follows smoothly without being stuck.
What is the lowest humidity that the device can reach?

Jack on 2021-09-10 09:33:14

1 Answer

Answered by Alorair
The unit has a continuous CO mode, which means it will dehumidify until you turn it off.
What is the decibel value of this dehumidifier when it is operating?

Levi on 2021-07-27 09:45:00

1 Answer

Answered by Alorair
Hi Levi, the decibel value of this dehumidifier is below 58 DBA.
I was really interested in the feature of the Auto humidistat, can you explain it a little bit more in detail?

Chloe on 2021-07-07 09:03:17

1 Answer

Answered by Alorair
Hi Chloe! Thank you for your interest in our product. For the Auto humidistat feature, the sentinel HD90 is equipped with an advanced humidity sensor that can notice changes in humidity levels in the bypass air design reducing short cycling and saving energy.
How long does it last and what is the maintenance on it?

Esther on 2021-04-21 15:21:51

1 Answer

Answered by Alorair
The unit lasts 7 years or more. You will just need to clean/replace the filter and clean the coil.
How to drain the water?

Courteney on 2021-03-29 16:17:13

1 Answer

Answered by Alorair
For effective drainage, lead the drain pipe into the pit. Check to make sure it is flowing downwards, and there should be no troughs, sinks, or loops. You can use PVC pipes to draw the water out. The machine drains under gravity, so make sure to completely defrost it when storing it.

Related Products