With this exhaust fan, you can exchange the outdoor and indoor air, improve room air quality and balance the humidity. Use crawl space vent fan used for exhausting vent radon gas treating wood gas ...

An actively vented crawl space utilizes a combination of vents and fans to circulate air throughout the space. This keeps moisture to a minimum, preventing mold growth and improving the air quality.

There are two effective ways to seal your crawl space vents. Either install a vent cover for the winter season or have a professional install an encapsulation to protect the space from flooding.