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AlorAir 540CFM Crawl Space Ventilation Fan

by AlorAir
Original price $83.66 - Original price $83.66
Original price
$83.66 - $83.66
Current price $83.66
in stock, ready to be shipped

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The VentirPro 540 uses an 8.7" aerofoil fan to produce 540CFM flow and cover spaces up to 5600 cubic feet to provide more efficient ventilation. It is a popular choice for basements, attics, garages, and any space that needs air circulation.

The Ventirpro 540 fan is an innovative solution designed for maximum airflow, portability and efficiency. The fan is IP55 certified, dust and waterproof and can run stably in any weather. This powerful system is also equipped with a dehumidifier and anti-freeze thermostat to prevent low-temperature failures. Adjustable humidity range 5%-80% RH for basements, warehouses, and crawl spaces from 3600-5600 Cu.Ft.


  • Knob control panel for easy and intuitive humidity adjustments
  • Built-in dehumidifier to effectively reduce humidity levels in the designated space
  • Automatic operation based on the user-set humidity level, ensuring optimal performance
  • Equipped with an anti-freeze thermostat to detect outdoor temperature, preventing operation below 35°F/1.7°C
  • Suitable for reducing humidity in spaces ranging from 3600-5600 cubic feet
  • IP55-rated ventilation fan for dust and splashproof protection
  • Galvanized mounting bracket for sturdy and durable installation
  • Panels can be trimmed after installation to match non-standard base openings
  • Inclusion of a barrier mesh to prevent crawlers from entering and affecting operation
  • Adjustable humidity range of 5%-80% RH to accommodate various environmental needs
  • 6 ft long power cord for flexible placement


    Control impurities – The air inside can be more polluted than the air outside. Our ventilation fan creates a powerful ventilation system that will help expel a build-up of pollutants, bacteria, moisture, and unpleasant odors.

    Air regulation - You can't control the flow of air in a building unless you have a good ventilation system. Too much fresh air can mean expensive energy bills, which is why good ventilation in your home is needed to regulate the level of health and safety you need.

    Reduce temperatures – When there are a few people in a confined space, the environment can soon become hot and stuffy. A well-ventilated room will instantly be more comfortable - creating a more relaxed environment, while also making for a more productive workplace.

    Health benefits – Indoor air pollution coupled with bad ventilation can lead to a number of health problems including headaches, allergies, asthma, rashes, and sinusitis. However, this can be avoided with the installation of a crawlspace fan with a humidistat.


    • Power: 45 W for energy-efficient operation
    • Voltage: 115 V/60 Hz for standard power supply
    • Current: 0.51 A for optimal power utilization
    • Airflow: 540 CFM for efficient air circulation
    • Size for: 3600-5600 Cu.Ft., providing versatile application
    • Noise Level: <55 dBA for relatively quiet operation
    • Weight: 6.2 lbs for lightweight and easy handling
    • Shipping Weight: 7.4 lbs for convenient transportation
    • Cord: 6 ft for flexible placement options
    • Functioning Temperature Range: 35-158 °F for versatile operation
    • Functioning Humidity Range: 5~80% for customizable humidity control
    • Dimensions (L x W x H): 15 X 10.2 X 2.8 in for a compact and space-saving design.


                Specifications Sheet
                User Guide
                Parts List
                Wire Diagram