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Deal.ai › AlorairCrawlspace › Ventilation Fans
AlorairCrawlspace
Alorair 540CFM Crawl Space Ventilation Fan Ventirpro 540
AlorairCrawlspace

Alorair 540CFM Crawl Space Ventilation Fan Ventirpro 540

Best price now

$89.66at Alorair the dry airChecked Nov 10

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Price facts

  • Last seen at $89.66 at Alorair the dry air on Nov 10.

Our take on the Alorair 540CFM Crawl Space Ventilation Fan Ventirpro 540

The Alorair VentirPro 540 is a 540 CFM ventilation fan built to move damp air out of crawl spaces, basements, garages and attics. It pairs a 115V AC motor with a dehumidistat adjustable from 5% to 80% RH and a thermostat that switches on at 50°F and off at 35°F, so it can run on its own instead of being switched by hand. At 6.2 lbs and 2.8 inches deep it mounts flat against a vent or wall, which is easier to place than bulky axial fans. It is louder than a quiet bathroom fan at 55 dBA, so it suits utility spaces rather than living areas.

Best forCrawl space humidity controlBasement and garage air exchangeAttic ventilationHomeowners who want automatic humidity and temperature triggers
Pros
  • 540 CFM moves a lot of air for a compact unit
  • Adjustable dehumidistat from 5% to 80% RH
  • Thermostat turns the fan on at 50°F and off at 35°F
  • Slim 2.8-inch profile mounts flush to a vent
  • 6.2 lbs, so one person can install it
  • ETL certified
Cons
  • 55 dBA is noticeable in nearby rooms
  • 115V AC motor, not a low-voltage DC unit
  • No speed settings; it runs at one airflow
  • Needs a nearby power outlet for its 6 ft cord

Alorair 540CFM Crawl Space Ventilation Fan Ventirpro 540 prices at every store

  • Alorair the dry airNew

    In stock

    $89.66Checked Nov 10
    Visit Alorair the dry air

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About the Alorair 540CFM Crawl Space Ventilation Fan Ventirpro 540

The Alorair VentirPro 540 is a crawl space ventilation fan that moves 540 CFM of air. It is made to expel excess humidity from enclosed spaces, which helps prevent wood rot, mold growth and airborne spores. It is sized for spaces of 3,600 to 5,600 cubic feet.

It is meant for crawl spaces, and it can also be used in other tight or enclosed areas of the home, such as a basement, garage or attic. By controlling humidity, it improves indoor air quality and reduces some allergy symptoms.

The fan has a built-in dehumidistat with a 5% to 80% RH range. Its thermostat turns the fan on at 50°F and off at 35°F.

Airflow
540 CFM
Coverage
3,600 to 5,600 cu. ft.
Motor
115V AC, 50/60 Hz, 0.51 A
Dehumidistat
5% to 80% RH
Thermostat
On at 50°F, off at 35°F
Sound level
55 dBA
Dimensions
15 x 10.2 x 2.8 inches
Weight
6.2 lbs
Power cord
6 ft
Certification
ETL certified

Questions and answers

What size space does the VentirPro 540 handle?
Alorair rates it for spaces of roughly 3,600 to 5,600 cubic feet at 540 CFM. Larger crawl spaces may need more than one fan or a higher-CFM model.
Does it turn on and off by itself?
Yes. The built-in dehumidistat runs the fan when relative humidity rises above your set point, adjustable from 5% to 80% RH. The thermostat also switches it on at 50°F and off at 35°F.
How loud is it?
Alorair lists a sound pressure level of 55 dBA. That is fine for a crawl space or garage but audible through a wall, so it is not a fan for a bedroom or living room.
What power does it need?
It uses a 115V AC motor drawing 0.51A at 50/60Hz, with a 6 ft power cord. You need a standard outlet within reach of the mounting spot.
Can it be used outside a crawl space?
Yes. Alorair lists basements, garages and attics as suitable enclosed spaces. Anywhere damp air collects and you can vent it outside works.
What comes in the box?
The fan unit with its 6 ft cord. Mounting hardware and ducting are not listed, so check what your install needs before buying.
Where is the Alorair 540CFM Crawl Space Ventilation Fan Ventirpro 540 cheapest?
At Alorair the dry air, for $89.66, as of our latest check.

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