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L300308 CFM High Capacity Ventilator, 2.9 Sones, 120V

  • Overview
  • Specifications
  • Accessories
  • Reviews
  • Answers
  • 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.
    • 308 CFM 2.9 Sones. (AMCA)
    • 120V, 2.6 amps
    • White polymeric grille
    • 8" round duct connector
    • Single, impact-resistant centrifugal blower wheel (Model L300KMG has a metal wheel)
    • 20 gauge galvanized steel housing
    • 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"308
    CFM @ 0.125"308
    CFM @ 0.25"303
    cUL ListedYes
    Duct DirectionHorizontal or Vertical
    Duct Size8"
    ENERGY STAR® certified productNo
    Globe ColorN/A
    Grille FinishWhite Polymeric
    Grille Length14"
    Grille Width14"
    Heater wattageN/A
    Housing Dimension LxWxH12-1/4" X 12-1/4" X 11-3/4"
    Housing Height11-3/4"
    Housing Length12-1/4"
    Housing Width12-1/4"
    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 Weight23.1 lbs
    Project PackNo
    Rated Amps2.6
    Rated Sones - Vertical3.0
    Rated Watts212
    UL Listed for use over bathtubs or showers when connected to a GFCI circuitYes
    Wall InstallationYes
    Warranty1 Year
    Watts @ 0.1"212
    Watts @ 0.25"N/A
  • L300 is rated 4.9 out of 5 by 10.
    Rated 5 out of 5 by from Very efficient fan Bought this fan a few months ago. Excellent product use and installation manuals. Installed the fan unit, connected to directional exhaust duct and wired it to a humidistat for control and fan did the air flow as specified . Installation only took about an 1.5 hours.
    Date published: 2016-09-20
    Rated 5 out of 5 by from Great!! Love it very powerful for the size and really quiet!!! Great fan
    Date published: 2015-03-16
    Rated 5 out of 5 by from Easy to install This is the best product I have purchased in a long time. I works great. It's quiet. People can't believe the the fan is on it is so quiet.
    Date published: 2014-09-05
    Rated 5 out of 5 by from Excellent Product Excellent exhaust fan. Have one of these in each of our bathrooms now and love them! Can sit in our jet tub as long as we want, and with this vent on, the vanity mirrors do not even steam up. We installed it when we had our bathroom remodeled due to mold issues. Don't think we will ever have to worry about mold again! I can also smoke a cigarette in the bathroom and not have to go outside in the freezing weather. This vent takes the smoke out immediately. Love it! Received excellent customer service from this company - good communication, well packaged, and fast shipped!
    Date published: 2014-02-07
    Rated 4 out of 5 by from broan exhaust fan great fan, heavy duty, made well. will last. lots of air flow
    Date published: 2013-12-10
    Rated 5 out of 5 by from Ultra quiet and powerful We have clients using the Broan L-300 and the Greenheck SP-A290 both are rated at 300 cfm and about 2.8 sones. However, for some reason the Greenheck is super loud compared to the Broan.
    Date published: 2013-06-25
    Rated 5 out of 5 by from 1st time buyer excellent product, exact fit, great price, fast shipping
    Date published: 2013-06-03
    Rated 5 out of 5 by from Great Fan If you cook or bake a lot need to get the heat out its a great choice
    Date published: 2013-04-25
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  • How many square feet will the L300 cover? Example Will the L300 cover a 10 foot by 10 foot bathroom??

    Asked by: Jorge
    Thank you for your question regarding the L300. The formula we use to determine proper CFM is to take the volume of the room (Length x Width x Ceiling Height) and multiply that number by 0.13. This will give you the CFM needed to perform 8 air changes/hour in that room space. You can then use that number to find a unit that will meet your requirements. If you need further assistance with this, please call Technical Support at 1-800-637-1453.
    Answered by: BroanCustomerService
    Date published: 2016-06-24

    Insulation ?

    Can I use blow/batt insulation around and over the fan housing ?
    Asked by: Shawn
    Thank you for your question on the model L300 exhaust fan. You can place insulation against the sides and on top of the L300 unit housing.
    Answered by: BroanCustomerService
    Date published: 2016-01-04

    Use for venting an indoor pool (7'x14')

    Can this unit (L300) be used for venting the room when the cover is off (Room is 16x18x10)? If so can the unit be wall mounted (2x6 wall) and vented directly outside.? And controlled by a wall switch (on/off)
    Asked by: Chris
    Thank you for your question on the L300. We would not recommend this model for the type of environment you have described. The L300 is too small for the size of the indoor pool room you have supplied. You would need something more in the 700-800 cfm range. The L300 would not fit into a 2x6 wall. We would suggest that you contact our Technical Support Department directly for other recommendations at 800-637-1453.
    Answered by: BroanCustomerService
    Date published: 2016-09-29

    Which wall cap goes with this unit. Would like one that has built in bird cage and spring loaded damper

    Asked by: Jay
    Thank you for your question on the model L300 exhaust fan. The wall cap we usually recommend for the L300 is the model 643. It has a built-in gravity damper. We do not have an 8” wall cap with a bird screen and spring loaded damper.
    Answered by: BroanCustomerService
    Date published: 2014-07-29

    will the fan motor and wheel from the L300L fit an existing L300 housing

    Asked by: tommyg
    Thank you for your question on the model L300. Yes, the motor and blower wheel for the L300L are the same parts that are used in the L300 unit.
    Answered by: BroanCustomerService
    Date published: 2015-06-10
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