Broan-Nutone High Capacity Commercial Exhaust Fan, 434 CFM, 2.3 Sones, White

Maintain continuous air circulation in commercial buildings and large interior spaces with the Broan-Nutone L400 High Capacity Ventilator Fan. Delivering an airflow rating of 434 cubic feet per minute at 2.3 sones, this commercial-grade exhaust fan provides a mechanical ventilation solution for removing stale air, moisture, and odors from office environments, public facilities, and utility spaces.

Engineered with dual impact-resistant centrifugal blower wheels, this unit operates on 120 volts and 1.4 amperes. The internal motor features permanent lubrication to support continuous operation, while automatic backdraft dampers prevent exterior air from flowing backward through the ventilation ductwork when the system is running.

The ventilator connects directly to a 4.5 x 18.5 inch metal duct connector piece and can be configured for either horizontal or vertical ducting orientations to accommodate varying building infrastructure and ceiling structures. Included with the unit is a painted white enamel steel grille that mounts flush to interior surfaces for a neutral visual presentation.

Designed for versatile wall or ceiling installation, this exhaust fan can be placed where ventilation is needed most across commercial facilities outside of direct shower or tub enclosures. Combining multi-directional ducting options with a dual-blower mechanism, the Broan-Nutone L400 supports effective mechanical airflow management across commercial properties.

• High-capacity commercial exhaust fan circulates air and removes odors in large indoor spaces
• Operates at 434 cubic feet per minute and 2.3 sones for continuous air movement
• Driven by dual impact-resistant centrifugal blower wheels for consistent airflow
• Powered by a 120-volt, 1.4-ampere motor with permanent lubrication support
• Features a 4.5 x 18.5-inch metal duct connector for system integration
• Can be ducted horizontally or vertically to match specific building layouts
• Automatic backdraft dampers prevent exterior air backflow through ducting
• Includes a painted white enamel steel grille that mounts flush to surfaces
• Mounts in wall or ceiling locations depending on space ventilation requirements
• Designed for commercial installations outside of immediate shower and tub enclosures
• Color: White
• Dimensions (L x W x H): 11.75 x 12.25 x 21.5 inches
• Weight: 23 pounds

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