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Rectangular splitter sound attenuators

All large buildings, underground tunnels, offshore oil and gas rigs are installed with air moving equipment, such as ventilation fans,
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Rectangular Ultra Low Leakage Control Damper

Catalogue − Submittal Sheet + Technical Data Sheet + Specification + Installation Manual +

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Rectangular Vertical Dual blade backdraft damper

Due to space constraint, backdraft dampers are frequently installed closed to fan discharge in ventilation duct system causing
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Rectangular volume damper

OLS Balancing/Motorized dampers are constructed of precision-formed parts so that a high standard of quality for the finished
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Safety Damper

Safety Damper Safety Damper Safety Damper

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Safety Damper

Safety Damper Safety Damper Safety Damper

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Single bank

The acoustic louvers are constructed of high quality electrogalvanised steel parts and painted in baked white enamel finish
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Sound absorption panels

Catalogue − Submittal Sheet + Technical Data Sheet + Specification + Installation Manual +

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Special coated bubble tight

Catalogue − Submittal Sheet + Technical Data Sheet + Specification + Installation Manual +

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Supply and Return Linear Bar Grilles

CONNOLS-AIR linear air grilles and registers (grilles) are designed with a slim and streamlined look. For a pleasing
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Swirl Diffusers

CONNOLS-AIR Square face diffuser is constructed of electro-galvanized steel with blades arranged in radial pattern to provide a
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Tunnel ventilation damper

Tunnel ventilation damper Tunnel ventilation damper Tunnel ventilation damper

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Tunnel ventilation damper

Tunnel ventilation damper Tunnel ventilation damper Tunnel ventilation damper

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VAV and CAV Terminal Units

VAV and CAV Terminal Units VAV and CAV Terminal Units

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VAV and CAV Terminal Units

VAV and CAV Terminal Units VAV and CAV Terminal Units

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Weatherproof Louvers

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Rectangular splitter sound attenuators

All large buildings, underground tunnels, offshore oil and gas rigs are installed with air moving equipment, such as ventilation fans, air handling units, cooling towers, and exhaust systems. Unacceptable noise levels are generated by such equipment and transmitted through both the supply and return air ductworks serving the building’s conditioned areas and tunnel ventilation shafts. OLSON Acoustics has a wide range of silencers designed to provide significant noise attenuation to achieve the desired acoustical environment for all applications. The silencer may be fabricated with different materials suitable for various environments, as described in more detail below.