The best attic exhaust fan complements a whole house fan. Together, they will effectively remove hot air from your home and improve your indoor air quality. Proper attic venting will keep the attic cooler during the summer months while preventing moisture issues down the line. If you’re looking to improve your home’s ventilation without breaking the bank, an attic fan might be best for you. It may even minimize your need to use air-conditioning all the time. How does it work? For attic ventilation to be effective it needs both exhaust and intake vents. The best attic exhaust fan is technically a powered exhaust fan that quickly removes air from the attic while simultaneously drawing fresh outdoor air from the intake vents, which are typically installed at the roof’s soffit. Selecting an attic fan If you check online, you’ll find a wide range of attic exhaust fans available in different sizes and price points. Each fan is categorized by cubic foot per minute (CFM), w