AlorAir Crawl space Basement Ventilator Fan, VentirPro-S2 with Temperature Humidity Controller (Air-out)

Model : VentirPro-S2

4.9 Average

$99.00 List Price: $199.00


VentirPro-S2 fans provide efficient air circulation. The unit achieves 240 CFM wind speeds at a shallow noise level of 48 dBA, making it the first choice for spaces such as crawl spaces and basements. At the same time, it's equipped with a multi-function control panel that makes it more convenient and efficient for you to operate, providing you with a drier and more comfortable environment.

Highlights:  LCD Display/GFCI Outlet/Timer/1 Year Warranty

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Categories:Ventilation Fans
Product Overview

AlorAir VentirPro-S2 Ventilation Fan
This high-tech ventilator fan is widely known among homeowners because of its intelligent system that is able to automatically operate once your set temperature and humidity level is set. Moreover, it is made with a refined design that compliments any location you desire to place it. With its features and superior specifications, you are sure to get the best value for money.


· User-friendly LCD Control Panel (timer, alarm, back-up memory, and eco mode)
· Has an intelligent system that adjusts the airflow in response to your set temperature and humidity level
· Multiple fan speed options
· Equipped with a thermostat and a humidistat
· Has corded sensor probe plugs 
· Has a galvanized stainless steel mounting frame
· Built with IP-44 rated fans (dust and water resistant)
· Uses a dual 120mm PWM-controlled DC Fans for maximized airflow and quiet operation
· Has an 8ft power cord

1. Promotes Healthy Indoor Air Quality – The use of a ventilator fan effectively extracts the contaminated air out of your space. This greatly helps in maintaining the right level of temperature and humidity to keep you and your family safe from the harms brought by cigarette smoke, dusts, humid air, foul odors, and other airborne irritants.
2. Optimal Restoration Assistance – Because of its superb features and specifications, users are assured to obtain maximum performance in exhausting poor air quality out of their chosen space. It is portable, durable, and very reliable.
3. Maintaining Cleanliness of Properties – By the ability of a ventilator fan to exhaust out contaminated air, you need not worry about frequently having to clean your properties, especially those that are stagnant or in storage. This both saves you time and prolongs the life of your properties.
4. Conducive Work Place for Higher Productivity – It is a proven fact that a workplace is positively affected by its favorable breathing atmosphere. By having a clean and safe air, employees are certain to provide optimal productivity and benefit from each other’s motivated work ethic.
5. Protection from Diseases – By the ability of a ventilator fan to exhaust out contaminated air, you and your family are certain to be safe from health risks brought by airborne irritants. These risks include allergies, skin irritations, respiratory illness, and immune-related diseases.

More so, our ventilator fans are supported by a dependable warranty coverage which you can check out in the user manual included in your unit. 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 ventilation needs.

Power 110 V-230 V,60/50 Hz; 8.5 W
Operating Voltage 12 V DC
Power Cord Length 5.5 ft
Noise 0-48 dBA
Operating Voltage 12 V DC
Current 0.8 A
Dim(L x W xH) 18 .2x 9x 1.7 in
Shipping Dim(L x W xH) 20 x 11 x 3.7 in
Functioning Humidity Range 20~100%
Functioning Temperature Range  14- 158°F
Airflow 0-240 CFM
Size For 450 Sq.Ft
Weight 4.4 lbs
Shipping Weight 6.2 lbs
Cord 5.5 ft

AlorAir VentirPro-S2 Crawl Space Fan
Known for its impeccable features and specifications, this particular unit is one of the most in-demand ventilator fans in the cleaning and restoration industry. Made with superior quality, you can never go wrong with this choice.

Because of its versatility and high-quality performance, the AlorAir VentirPro-S2 Ventilator Fan is applicable to use in various locations such as:

· Crawl Space
· Basement
· Attic
· Garage

Proper Use and Maintenance
Every ventilator fan needs proper usage and maintenance to support its long-lasting capability. Here are some safety tips for using and maintaining it:
· Make sure you have the right power supply to avoid electrical issues
· It must be connected to a grounded electric source to avoid accidents and damage
· The surface in which it is set to operate must be leveled and steady
· Adjust your desired temperature and humidity level using the user-friendly control panel
· Never tamper on the internal components while the unit is running
· Before cleaning, make sure to properly unplug the unit
· Clean the unit using a reliable vacuum 
· 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 ventilator fan, 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 & Questions

99% of customers recommend this item

16 Ratings
4.9 Average
5 Stars
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Reduce moisture and odor
By 'Marian', Reviewed on January 11, 2022
I purchased this vent fan to help with moisture and odor in my shed. The quality of the fan is great. I really like how you can set the run time and % of humidity. Before if I stored cloth or leather tool bags in my shed they would start to grow something on the surface. With the fan, I can control the moisture in my shed and save my tools.
Technology / simplicity / plug and play
By 'Melissa', Reviewed on January 08, 2022
Technology and simplicity combined to solve simple fundamental issues. I had been searching for a fan that would turn on and off in correspondence with temperature increase and decrease for ventilation in my attic. Gable vents alone don’t move air and therefore don’t enable attics to keep cool thus making your house hot. I debated hiring an electrician to hard wire thermostat controllers for standard box fans until I found this fan! It’s plug-and-play - simple- and my problems are solved. No electrician is needed. This will keep my attic cool and save me electricity by using a/c less. These fans can also be used and activated with humidity levels. Great for basements or crawl spaces. They are weather-resistant too! I absolutely love these fans.
By 'Rhys Evans', Reviewed on July 16, 2021
Because of the hot and humid weather, sometimes I can found condensation on the wall. I came across this product by chance, and as it was inexpensive, I bought it to give it a try. However, it really impressed me, the machine made a big difference in removing the condensation, I was really satisfied with it.
Efficient dehumidification
By 'Jessica Miller', Reviewed on May 12, 2021
This fan installed easily and is actually pretty quiet. The thermostat works well and while it's not totally accurate in terms on actual temp vs markings on the dial. But it does help reduce the humidity in my house.
It is very useful
By 'Ashlyn Magana', Reviewed on April 30, 2021
I have mine installed just like the picture. The fan has been a great help to my basement, as there is hardly any airflow in and out of the place. The noise level on a fan this big is low and very smooth. The ball bearing has little to no resistance, and the controller is a nice feature for giving off alarms and eco-mode. The eco-mode is great if you just want to set it and forget it. I have mine working this way and even after a power failure, the fan went back to the last setting it had saved. A quality fan for a fair price.
very useful
By 'Iris Flowers', Reviewed on April 05, 2021
My basement is very damp, which annoy me very much, so I decided to buy an exhaust fan, which controls the temperature and humidity of my basement very well, and I think it is very useful
Good product
By 'Keri Meyers', Reviewed on March 15, 2021
This is the best ventilation fan I have not used yet. Can be easily installed in my crawl space. Through the digital control, you can set the temperature or humidity, thus increasing the versatility. About a week or two after installing this machine, the humidity in my crawling space dropped. Yes, I would recommend it to my friends.
Very effective ventilation fan
By 'Claire Watson', Reviewed on March 08, 2021
VentirPro-S2 has left a deep impression on me. The manufacturing quality is very good, the operation is simple, and the price is very reasonable. I plan to buy 2 more. These fans help keep the crawl space dry and bring a much fresher smell to the space. The instructions are clear and easy to understand, so you know how to run it correctly. Overall, a great product.
Great fan for damp basements
By 'Skye Haworth', Reviewed on March 01, 2021
My basement accumulates a lot of moisture throughout the day. If there is no fan, the wooden structure of the basement will be infested by termites. However, after a few weeks of installation, I noticed that I can breathe more easily and there is less dust around. The fan has temperature and humidity sensors, if set correctly, both can work normally. The base cover is also stainless steel, which is highly resistant to stains or other mold growth.
Impressive unit
By 'Rajveer Rosario', Reviewed on February 22, 2021
The unit runs well, is relatively quiet, and well ventilated. The function matches the description and is cheaper than other similar units. I have been running it for 2 months and it is still very powerful. My crawl space is not as musty as before. As it will be affected by rain and weather, what impresses me is that it is still running. Will buy another one in the future.


Is it the exhaust version? do the fans blow to indoor or outdoor?

Spring on December 30, 2021

1 Answer

Answered by Alorair
Yes, this fan will be the exhaust version and it blow to outdoor.
Where can this ventilator fan be used?

Ash on August 25, 2021

1 Answer

Answered by Alorair
Hi Ash, the Crawl Space fan is designed to allow fresh outdoor air to circulate under the house and porch, control the temperature and humidity levels of your crawlspace, basement, attic, and garage.
Does the machine make a lot of noise when it operates?

Sage on July 16, 2021

1 Answer

Answered by Alorair
Hi Sage, The unit has a double-ball DC motor that drives the built-in 120mm double-blade fan, which can move 240 CFM while reducing noise and power consumption, which is better than AC fans. What's more, the noise of this noise is 0-48 dBA. So, you can don't worry about the noise.

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