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Ventilation Backdraft Dampers

Ventilation backdraft dampers play a crucial role in maintaining efficient airflow and energy management in residential and commercial spaces. Designed to help prevent unwanted air movement, these essential components support the overall performance of your ventilation system. Browse a wide selection of ventilation backdraft dampers to find the right fit for your project and ensure optimal indoor air quality and comfort.

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  1. Zephyr - Duct 3-1/4 In. x 10 In. Exhaust Cap with Damper & Bird Screen for Range Hood - Silver

    SKU: JX35LVT8XW

    Fit great with existing hood design, and matched perfect

    Product Description

    A silver steel exhaust cap with damper and bird screen prevents backdrafts and animal entry for range hoods.
    See all Range Hood Parts & Accessories
    Your price for this item is $59.99

  2. Zephyr - Duct 6 In. Round Exhaust Cap with Damper & Bird Screen for Range Hood - Silver

    SKU: JX35LVT837

    Great fit and quality.

    Product Description

    A silver galvanized steel exhaust cap with damper and bird screen prevents backdrafts and animal entry.
    See all Range Hood Parts & Accessories
    Your price for this item is $39.99

  3. Zephyr - Duct 10 In. Universal Make-Up Air Damper Kit for Range Hood - Silver

    SKU: JX35LVT3QH

    Product Description

    A universal 10-inch silver steel damper kit that balances home air pressure for range hoods.
    See all Range Hood Parts & Accessories
    Your price for this item is $279.99

  4. Zephyr - Duct 7 in. Low-Profile Round Damper with Collar for Range Hood - White

    SKU: JX35LVTPJR

    Product Description

    A white, low-profile steel damper with collar prevents backdrafts in compatible range hood duct systems.
    See all Range Hood Parts & Accessories
    Your price for this item is $19.99

  5. Zephyr - 10 in. Round In-Line Damper - Silver

    SKU: JX35LVT9YX

    Product Description

    A durable silver steel in-line damper that prevents backdraft in compatible range hood exhaust systems.
    See all Range Hood Parts & Accessories
    Your price for this item is $59.99

  6. Viking - Automatic Make-Up Air Damper for Professional 5 Series VDD5300SS and VDD5360SS Hoods - Gray

    SKU: J38CVCJ27F

    Product Description

    A gray automatic air damper that circulates fresh air and exhausts odors for a comfortable kitchen.
    See all Range Hood Parts & Accessories
    Your price for this item is $389.00

  7. Viking - Automatic Make-Up Air Damper for Professional 5 Series VDD5300SS and VDD5360SS Hoods - Gray

    SKU: J38CVCJ278

    Product Description

    An automatic gray damper that enhances kitchen ventilation by supplying fresh air when your range hood operates.
    See all Range Hood Parts & Accessories
    Your price for this item is $349.00

  8. Zephyr - Duct 7 In. Round Exhaust Cap with Damper & Bird Screen for Range Hood - Silver

    SKU: JX35LVT83G

    Product Description

    A silver galvanized steel exhaust cap with damper and bird screen prevents backdrafts and animal entry.
    See all Range Hood Parts & Accessories
    Your price for this item is $49.99

  9. Zephyr - Duct 8 In. Round Exhaust Cap with Damper & Bird Screen for Range Hood - Silver

    SKU: JX35LVT83V

    Product Description

    A silver galvanized steel exhaust cap with damper and bird screen prevents backdrafts and animal entry.
    See all Range Hood Parts & Accessories
    Your price for this item is $59.99

  10. Zephyr - Duct 8 In. Universal Make-Up Air Damper Kit for Range Hood - Silver

    SKU: JX35LVTX63

    Product Description

    A silver steel damper kit that balances home air pressure for range hoods operating over 300 CFM.
    See all Range Hood Parts & Accessories
    Your price for this item is $229.99
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FAQ

A ventilation backdraft damper is designed to prevent outside air, odors, and debris from entering your ventilation system when the fan is not running, allowing airflow in one direction only.

Yes, backdraft dampers are suitable for use in both residential and commercial ventilation systems, including bathroom exhausts, kitchen range hoods, and HVAC ductwork.

Most backdraft dampers are designed to be compatible with a wide range of ventilation fans and ductwork, making them a versatile addition to different ventilation setups.

Backdraft dampers generally require minimal maintenance, but it’s recommended to periodically check for dust or debris buildup to ensure optimal performance.

A backdraft damper is typically installed within the ductwork, close to the point where air exits the building, to effectively block unwanted airflow from entering the system.