It depends on the specific situation and purpose. Attic fans can have both benefits and drawbacks.
Attic fans can help reduce heat buildup in the attic during hot weather, which can help lower the temperature inside your home and reduce your air conditioning usage.
Attic fans can also help reduce moisture buildup in the attic, which can help prevent mold and mildew growth.
Some attic fans can be noisy and disruptive, especially if they are located close to living spaces. CentricAir attic fans are they quietest in the industry. They are acoustically designed and precision balanced making for an ultra quiet operation.
Some attic fans can also increase your energy bills, especially if they are used frequently or left on for long periods of time. CentricAir attic fans are extremely energy efficient and use just 1.5 amps and come with a 15 year fan motor warranty.
Overall, a quality attic fan can be good if properly installed and used in a way that balances the benefits and drawbacks for your specific situation.