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The VMI Air-Pro 5074 is a 10-inch in-line silencer that installs in the duct run of a range hood ventilation system to reduce the noise traveling through the ductwork at both the inlet and outlet.
Range hood blowers move air efficiently, but duct runs can carry blower noise and airflow turbulence through the walls and ceiling into living spaces. An in-line silencer interrupts that path. Installed between the ventilator outlet and the exterior termination point, it dampens the sound before it travels through the structure. The result is a quieter kitchen during cooking, particularly noticeable on higher blower speeds where duct noise is most pronounced.
This is especially useful in open-plan layouts where the kitchen shares acoustic space with dining and living areas, or in installations where the duct run passes near bedrooms or other noise-sensitive rooms.
The 5074 is a VMI Air-Pro component, developed alongside the Air-Pro ventilator line. It carries inlet and outlet connections at the 10-inch size, making it compatible with duct configurations that match that diameter. Because it is part of the Air-Pro accessory family, it integrates cleanly into installations already using Air-Pro ventilators and liners rather than requiring field modifications to fit a third-party silencer into the run.
Cabinet installers and kitchen designers specify an in-line silencer when a client is investing in a custom wood hood and wants the finished installation to be as quiet as the kitchen looks. A high-end wood hood shell with a quality blower is a significant investment, and duct noise that wasn't addressed in the rough-in stage can undercut the result. Specifying the silencer at the same time as the ventilator keeps the installation complete from the start, without a return trip to retrofit it later.
It also suits renovation work where the original duct run is longer than ideal or makes turns that increase turbulence and noise, and where replacing the duct path is not practical.
It is designed as an Air-Pro accessory and pairs with Air-Pro ventilators and liners. Compatibility with non-Air-Pro systems depends on matching the duct diameter and connection type; confirm fit before ordering for a non-Air-Pro installation.
In-line silencers are typically installed in the duct run between the ventilator outlet and the exterior termination cap, away from elbows and transitions where possible. Follow the installation guidance for the ventilator system being used.
Any in-line component adds some static pressure to the duct run. The degree of impact depends on the overall duct layout and blower capacity. When sizing the ventilator for the cooktop, account for the silencer in the total duct resistance calculation.
No. This is the duct silencer only. The Air-Pro ventilator or power pack that moves the air is a separate product. The decorative wood hood shell and liner are also separate purchases.
Specifying the 5074 silencer with the ventilator keeps duct noise out of the picture before the walls are closed, so the finished hood installation is as refined in operation as it is in appearance.