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Broan ALT2303BLS
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Description & Features
The Broan ALT2303BLS under‑cabinet range hood brings powerful, quiet performance and a sleek modern look to everyday cooking, making it an ideal upgrade for busy kitchens that demand both style and serious ventilation. Designed at a 30‑inch width to fit the most common cooktop sizes, this black stainless steel hood delivers up to 350 MAX blower CFM of ventilation, giving you the strength to quickly capture smoke, steam, and lingering cooking odors before they spread through your home. What truly sets this model apart is its advanced airflow system, engineered to be up to 20% more effective at removing pollutants than many comparable hoods while operating at only 1.5 sones on working speed—about as quiet as a running refrigerator—so conversations, music, and family time can continue comfortably while you cook. The Alta series also features the convenient EZ1 one‑person installation system, which uses smart mounting brackets to simplify setup and help you achieve a professional, secure fit in significantly less time, whether you’re a contractor or a confident DIYer. For everyday usability, the ALT2303BLS includes bright, heat‑resistant 2‑level LED lighting that evenly illuminates your cooking surface, enhancing visibility while using far less energy than traditional bulbs and staying cool to the touch. Seamless tap‑touch, 3‑speed capacitive controls are integrated into the front of the hood, giving you intuitive fingertip access to fan speeds and lighting without bulky knobs, and the fully enclosed bottom with high‑efficiency, dishwasher‑safe micro‑mesh filters makes cleanup fast and straightforward. This model is ENERGY STAR® certified, helping reduce energy consumption while meeting strict efficiency standards, and its convertible design supports both ducted and non‑ducted installations to suit a wide range of kitchen layouts. With its premium black stainless finish, quiet yet powerful performance, and combination of high‑end features usually found in more expensive ventilation systems, the Broan ALT2303BLS offers a compelling blend of performance, convenience, and contemporary style for homeowners looking to upgrade their kitchen ventilation with confidence.

ENERGY STAR® certified – meets strict energy-efficiency standards to help reduce power consumption and operating costs.
Title 24 compliant (with electric ranges only) – satisfies California Title 24 building code requirements for energy-efficient ventilation.
Alta™ 30-inch under-cabinet design – low-profile Alta series hood fits neatly under standard 30" cabinets for a modern, built-in look.
Broan-NuTone® indoor air quality engineering – designed by a leading residential ventilation brand to exceed industry standards with rigorous quality checks.

350 MAX blower CFM ventilation – powerful internal blower quickly captures and removes smoke, steam, and cooking odors from the kitchen.
Ultra-quiet 1.5 sone operation – delivers strong ventilation at a sound level comparable to a running refrigerator for comfortable everyday use.
3-speed tap-touch blower control – lets you easily select low, medium, or high fan speeds to match light simmering or heavy frying.
Backlit capacitive touch controls – seamless, illuminated touch panel is easy to see, simple to wipe clean, and intuitive to operate.
Bright 2-level LED lighting modules – integrated, heat-resistant LED lights (included) provide high and low settings to clearly illuminate the cooktop.
Black stainless steel finish – contemporary black stainless exterior coordinates with modern appliances and resists everyday kitchen wear.

Fully enclosed bottom design – smooth underside helps contain grease and simplifies wipe-down cleaning.
Dual micro-mesh grease filters – two high-efficiency micro-mesh filters capture airborne grease for cleaner cabinets and walls.
Dishwasher-safe filters – removable filters can be placed directly in the dishwasher for fast, convenient maintenance.
Convertible venting configuration – supports top or rear ducted installation or non-ducted (recirculating) setup with optional charcoal filters.
Optional charcoal odor filters (HPF30) – add-on filters allow ductless operation while helping reduce cooking odors in recirculating installations.

EZ1™ single-person installation system – included brackets and hardware are designed so one person can mount the hood quickly and accurately.
Hardwire or plug-in flexibility – can be direct-wired or used with an optional power cord kit (model HCK44, sold separately) to match your installation needs.
Universal make-up air damper compatibility – works with optional MD6TU, MD8TU, or MD10TU dampers to replace exhausted air only when the hood runs, helping maintain balanced home air pressure.
ADA compliant capable – can be installed to meet ADA requirements using the optional HAWRK5 low-voltage wiring and wall switch kit (sold separately).

30-inch width class – sized to fit most 30" cooktops and ranges for standard kitchen layouts.
Low-profile 5⅛" height – shallow body maximizes headroom and maintains a sleek, unobtrusive appearance under cabinets.
Approx. 20" depth coverage – extends over the cooking surface to better capture rising smoke and steam.

High capture efficiency design – engineered airflow path and filters help capture a high percentage of cooking pollutants for cleaner indoor air.
HVI certified performance – independently tested to verify airflow and sound ratings for realistic, reliable performance expectations.
Energy-efficient 120V operation – designed for standard household electrical service with low current draw.
Residential indoor use – intended for indoor kitchen installations to improve everyday cooking comfort and air quality.

1-year limited product warranty – provides manufacturer coverage on the range hood for added purchase confidence.
Extended 3-year LED module warranty – additional coverage on the LED lighting modules for long-lasting illumination.

Manufacturer's Warranty: 1 year

Canadian model: ALT2303BLS

Similar to USA model: ALT2303BLS

Canadian UPC: 026715273867

Similar to USA UPC: 026715273867

EAN: 0026715273867

Specs
Specification Value
Brand Broan-NuTone
Series Alta (ALT2 Series)
Model ALT2303BLS
Product Type Under-cabinet range hood
Style Standard / Ducted (convertible)
Mounting Type Under cabinet
Color Black stainless steel
Material Stainless steel
Fingerprint Resistant No
Width 30 inches (29 15/16" nominal)
Depth 20.06 inches (20 1/16" nominal)
Height 5.12 inches (approx. 5 1/8")
Product Width (manufacturer spec) 30"
Product Depth (manufacturer spec) 20.06"
Product Height (manufacturer spec) 5.12"
Approximate Shipping Weight ~35 lb (where listed)
Venting Type Convertible (ducted or non-ducted/recirculating)
Vent Type (manufacturer) Convertible built-in
Duct Direction Horizontal or vertical
Duct Size 3.25" x 10" rectangular or 7" round
Diameter (duct connection) 3.25 x 10-inch; 7-inch round
Blower Included Yes
Blower Type Internal
Airflow (Max Blower CFM marketing) 350 CFM (Max blower rating)
Airflow (HVI / rated CFM – manufacturer) 250 CFM
Fan Capacity (Canadian retail listings) 250 CFM or 350 CFM stated; manufacturer spec uses 250 CFM
Number of Fan Speeds 3
Speed Levels (manufacturer) 3
Noise Level 1.5 sones (working speed)
Sound Level (Sones – manufacturer) 1.5
Filter Type Micro mesh
Number of Grease Filters 2
Dishwasher Safe Filters Yes
Fully Enclosed Bottom Yes, with micro mesh filters
Lighting Type LED
Bulb Type (recommended) Integrated LED module
Number of Light Levels 2
Light Bulb Wattage (each module) 5 W
Light Bulbs Included Yes
Night Light / Nightlight Setting No
Control Type Tap-touch / capacitive touch
Switch Control Type (manufacturer) Capacitive touch
Backlit Controls Yes
Delay Shut-Off Yes (listed on some retailers)
Filter Clean Reminder No
Built-in Timer No
Heat Sentry™ No
HVI Certified Yes
ENERGY STAR® Certified Yes
ADA Compliance Yes (with optional HAWRK5 kit and wall switch)
ADA Capable Yes
UL Listed No (per manufacturer spec)
Minimum Height Above Cooktop 18 inches
Installation Hardware EZ1 installation bracket system
Installation Type Hardwired; optional power cord kit available
Electrical Connection Direct wire (hardwire)
Optional Power Cord Kit HCK44 (sold separately)
Rated Voltage 120 V, 60 Hz
Rated Amps 0.8 A
Wattage (manufacturer) 168 W
Wi-Fi No
Smart Connectivity None
Remote Operation Capable No
Boost Mode No
Ductless Recirculation Capable Yes (charcoal filters required)
Ductless Filter / Kit Included No (sold separately)
Recirculation Filters (optional) Charcoal filter model HPF30 (sold separately)
Damper Included Yes
Optional 7" Round Damper BP87Q (where listed)
Optional Make-up Air Dampers MD6TU, MD8TU, MD10TU (optional)
Approved for Outdoor Use No
Country of Origin China
Manufacturer Warranty 1-year limited, plus 3 years on LED module (where specified)
Energy Star / Title 24 Notes ENERGY STAR certified; suitable for energy-code compliant installations (per some Canadian retailers)
Marketing Highlights Up to 20% more effective and up to 44% quieter than leading competitors; 50-point inspection; EZ1 one-person installation
Manuals Video
ALT2303BLS
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Delivery and installation services are available from CAS
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(Gas connections, ventilation, dishwashers, etc.)
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 1-877-694-3909
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