What is the most common feature for Active Ventilation Attic Fans?

The most common feature for Active Ventilation Attic Fans is <a href = "https://www.homedepot.com/b/Building-Materials-Ventilation-Roofing-Attic-Ventilation-Attic-Fans/Active-Ventilation/Weather-Resistant/N-5yc1vZc65uZ5goZ1z19ynt" class="u__default-link"> weather resistant</a>.

What's the best-rated product in Active Ventilation Attic Fans?

The best-rated product in Active Ventilation Attic Fans is the <a href = "https://www.homedepot.com/p/Active-Ventilation-800-CFM-Power-12-in-Dia-Aura-Exhaust-Attic-Fan-with-6-in-Collar-AF-12-C6/304804797" class="u__default-link"> 800 CFM Power 12 in. Dia Aura Exhaust Attic Fan with 6 in. Collar</a>.