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Air-Pro in-line silencer is a galvanized steel silencer that integrates into circular ductwork to reduce noise and vibration in a range hood ventilation system. By sitting directly in the duct run, it treats sound inside the airflow path so the overall system operates more quietly around the kitchen and adjacent rooms. As part of the Air-Pro family, it supports wood range hood installations where duct-borne noise can travel through cabinets and framing, helping keep sound levels down while the blower is running at working speeds.
The 8 duct Air-Pro silencer measures 12-1/2 diameter by 23-5/8 length, so it occupies a defined straight section of the round duct run while providing internal noise reduction. The 10 duct version measures 14 diameter by 35-1/2 length, giving a longer silencer body for larger systems where the duct size and airflow volume are greater. These fixed dimensions help with planning cabinet clearances, framing passes, and transitions so the silencer can sit in line with the rest of the circular ductwork layout.
This Air-Pro silencer is part of the range hood ventilators and accessories line, so it is intended for use in kitchen ventilation systems serving wood range hoods. Because it is made for circular ducts, it fits into straight runs of round ductwork between the hood and the discharge point, giving a noise-reducing section within the system. The combination of galvanized steel construction and two inch thick insulation makes it suitable for interior duct paths in cabinets, soffits, or concealed chases where sound from the blower can carry through the duct. With dedicated 8 and 10 diameter versions, it matches common duct sizes used in kitchen hood layouts, allowing the installer to select a silencer sized to that round duct path.
The galvanized steel body provides a stable shell around the airflow, so the silencer holds its diameter and length while the duct system operates, which supports predictable resistance and performance within the duct design. Two inch thick insulation is built into the silencer wall, so sound energy and vibration inside the duct are absorbed over the length of the unit, which helps the range hood system sound quieter at typical operating speeds. The rubber seal at both the inlet and outlet creates a more controlled connection point at each end, helping align the round duct sections while also softening contact where vibration would otherwise transfer directly into hard duct joints. Together, these construction details allow the Air-Pro silencer to function as a dedicated noise-control segment inside the round duct, working with the rest of the range hood accessories and ductwork kits to support a smoother-sounding ventilation run.
The Air-Pro silencer is designed for circular ducts, so it fits round duct runs commonly used with range hood ventilation, keeping the airflow path consistent through the silencer section.
The silencer is available with an 8 or 10 diameter, allowing selection that matches the chosen round duct size in the range hood system layout.
The Air-Pro silencer has two inch thick insulation, which absorbs sound and vibration inside the duct run to help reduce overall system noise.
The 8 duct version measures 12-1/2 diameter by 23-5/8 length, so it occupies a specific straight section within the circular duct layout.
The 10 duct version measures 14 diameter by 35-1/2 length, providing a longer silencer body for larger round duct systems.
The silencer has a rubber seal on the inlet and outlet, creating cushioned junctions that support tight round duct connections and help limit vibration transfer.
This Air-Pro in-line silencer from VMI, Inc. combines galvanized steel construction, two inch thick insulation, and rubber-sealed inlet and outlet ends to reduce noise and vibration in circular duct systems. With defined dimensions for both 8 and 10 duct sizes, it fits into straight round duct sections used with wood range hoods and related kitchen ventilation. For projects where the duct itself carries much of the sound, this dedicated silencer section provides a focused way to quiet the airflow path inside the system.