Low sound clean air fans with drive are primarily used to supply fresh air and exhaust odorous, hot, or stale air. These fans feature blade designs and components that make them quieter than regular fans while performing at the same level. They come with a drive package that includes a motor, sheaves, belts, and bushings. Belt-drive fans are typically quieter and provide more control over the fans' blade speed and airflow than direct-drive exhaust fans.

Low sound clean air fans with drive are primarily used to supply fresh air and exhaust odorous, hot, or stale air. These fans feature blade designs and components that make them quieter than regular fans while performing at the same level. They do not come with a drive package, so the user must provide the drive components. Belt-drive fans are typically quieter and offer more control over the fans' blade speed and airflow than direct-drive fans.

Emergency smoke fans with drive remove smoke from a structure in the event of a fire. These fans do not come with a drive package and users will need to provide their own. They feature heavy-gauge steel, heat-resistant internals, and are UL and C-UL listed for emergency smoke control.