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NuTone® Osmos AHSA1 Series Under-Cabinet Range Hood

NuTone® 30-Inch Convertible Under-Cabinet Range Hood, 250 CFM, Black

Osmos AHSA1 is a 30 in. under-cabinet convertible range hood in black finish that features a simple, waterfall curve to complement traditional kitchen designs in a brand new way. Equipped with the exclusive Broan Captur™ system, which combines advanced blower design with new filter technology, Osmos is rated at 250 CFM and provides up to 97.4% removal of smoke and odor to protect your home and family from airborne pollutants caused from cooking. Osmos is also designed with Smooth Flow technology, which streamlines the path of air to improve efficiency and virtually eliminate noise. Easy-flip, hidden rocker switches control the 2 fan speeds and halogen lighting system.

Color Finish

Product Width




HVI Certified

HVI Certified

UL Listed

UL Listed

  • Convertible range hood can be installed as venting or non-venting to fit a variety of installation needs
  • Hidden rocker switches adjust fan speed and lighting levels
  • Quiet operation at both high and low speeds
  • Captur™ exhaust system and 250 CFM blower is up to 97.4% efficient in removal of smoke and odor from cooking
  • Convertible to accommodate either top or rear venting applications, or non-ducted operation using charcoal filters, which are sold separately (Filter Model S97020464)
  • Dishwasher-safe open mesh filter features high-flow technology to grab more airborne grease
  • 2 halogen bulbs, included, provide warm light over the cook surface, adjustable to high or low levels
  • Hidden louvers on top of hood exhaust away from cabinetry
  • Open-bottom, under-cabinet convertible range hood features stylish, curved design and hidden controls to blend neatly into any kitchen
  • 1-year limited manufacturer’s warranty
  • Non-duct capable with use of charcoal filters (NuTone model HPF1 sold separately)
  • Range hood is installed as hardwired or with an optional power cord kit (SHCK44; sold separately)
  • Specs
  • Downloads
  • Videos


Filter Type Open Mesh
Heat Sentry™ No
HVI Certified Yes
Lighting Type Halogen
Sound Level (Sones) 1.5
UL Listed Yes
ADA Compliance Yes
Damper Included No
ENERGY STAR® certified No
Light Bulb Wattage 50
Light Bulbs Included Yes
Light Levels 2
Material Steel
Nightlight Or Nighlight Setting No
Ductless Recirculation Capable Yes
Ductless Filter Or Kit Included No
Remote Operation Capable No
Speed Levels 2
Switch Control Type Rocker
Rated Voltage 120
Boost Mode No
Country of Origin Mexico
Color Finish
Rated Amps 1.4
Product Depth 19.625"
Product Height 6"
Product Width 30"
Built-In Timer No
Capture Efficiency 97.4
CFM 250
Diameter 7" Round
Vent Type Convertible Built-In
Duct Direction Horizontal/Vertical
Bulb (Recommended Type) GU10 MR16
Manufacturer Warranty 1 year
NuTone Single Blower Under-Cabinet Range Hood Installation Video
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