ALORAIR Crawl Space Grow Room Ventilator Fan with Humidista 300CFM, IP55 Rated

When the vent fan detects that the ambient temperature is lower than 37 degrees, the fan will automatically stop running. Stainless Steel Crawl Space Ventilation Fan: Air output: 300CFM, IP55 grade crawl space ventilation fan, with good dustproof, weatherproof, and liquid resistance, do not need to worry about the fan rusting.