L400434 CFM High Capacity Ventilator, 2.3 Sones, 120V

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  • Broan high capacity fans are an exceptionally quiet solution to continuous ventilation. With their heavy-duty motors, high capacity fans are an ideal solution for conference rooms, public restrooms and other areas in commercial buildings that require ongoing ventilation. Low-vibration and lo-profile, they work quietly without getting noticed.
    • 434 CFM 2.3 Sones. (AMCA)
    • 120V, 1.4 amps
    • 4-1/2" x 18-1/2" duct connector
    • Painted white enamel steel grille
    • Two impact-resistant centrifugal blower wheels
    • Quiet automatic backdraft dampers
    • Can be ducted horizontally or vertically. In-line ducting available with separate adapter
    • Use Broan Electronic Variable Speed Control to adjust blower speed and sound level (available separately)
  • Bathrooms up to (X) Square FeetN/A
    Ceiling InstallationYes
    CFM @ 0.10"442
    CFM @ 0.125"434
    CFM @ 0.25"388
    cUL ListedYes
    Duct DirectionHorizontal or Vertical
    Duct Size4-1/2" x 18-1/2"
    ENERGY STAR® certified productNo
    Globe ColorN/A
    Grille FinishWhite Painted Metal
    Grille Length14"
    Grille Width23-1/4"
    Heater wattageN/A
    Housing Dimension LxWxH12-1/4" X 21-1/2" X 11-3/4"
    Housing Height11-3/4"
    Housing Length12-1/4"
    Housing Width21-1/2"
    Humidity SensingNo
    HVI CertifiedNo
    Light Bulb Quantity0
    Light Bulb WattageN/A
    Light Bulb(s) IncludedNo
    Lighting TypeNo Light
    Minimum construction space requiredN/A
    Motor engineered for continuous operationYes
    Product Weight33.8 lbs
    Project PackNo
    Rated Amps1.4
    Rated Sones - Vertical2.6
    Rated Watts146
    UL Listed for use over bathtubs or showers when connected to a GFCI circuitNo
    Wall InstallationYes
    Warranty1 Year
    Watts @ 0.1"146
    Watts @ 0.25"N/A
  • L400 is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Kicks butt! This exhaust fan met my expectations. The construction is solid and the unit carries some weight so be prepared to support accordingly. At 2.3 sones, this unit whispers while it works. I also purchased the speed control, which I may deem unnecessary after more usage since the unit is so quiet at full speed.
    Date published: 2013-04-17
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  • Does this model come with the 4.5x18.5x10" transitional duct connector

    Asked by: HVAC Guy
    Thank you for your question on the L400 ventilation fan. This model does not come with the transition. The L400 uses a duct size of 4-1/2" x 18-1/2" and we recommend transitioning this to a 10" round using the model number 423. This is available separately.
    Answered by: BroanCustomerService
    Date published: 2016-09-14

    Can this be installed in a bathroom with a shower?

    Asked by: Ryan H
    Thank you for your question on the model L400 exhaust fan. The L400 can be mounted in a bathroom, but you would not want to mount this over a shower. Please contact the Technical Service Department at 800-637-1453 for further assistance.
    Answered by: BroanCustomerService
    Date published: 2015-02-23

    Is this product made in USA?

    Asked by: BV
    Thank you for your question on the model L400 exhaust fan. The L400 is made in Hartford, Wisconsin.
    Answered by: BroanCustomerService
    Date published: 2016-11-02

    How effective would this unit be to extract cigar smoke from a 10 X 10 room?

    Asked by: Dave
    Thank you for your question on the Broan L400. The Broan L400 is a 434cfm exhaust fan. This fan will move a sufficient amount of air in this 10" x 10" room. I would suggest putting this unit on a variable speed control. If you have further questions please contact Technical Support directly at 800-637-1453.
    Answered by: BroanCustomerService
    Date published: 2017-12-05

    Can this be used in a hobbyist work shop to extract wood dust and paint fumes?

    Asked by: woody
    Thank you for your question on the model L400 exhaust fan. The L400 is designed to exhaust stale air and is not actually designed to extract wood dust. The unit is also not explosion proof, so it should not be used to exhaust volatile fumes.
    Answered by: BroanCustomerService
    Date published: 2015-12-23
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