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Shark® Clean & Empty Cordless Stick Vacuum & Auto-Empty System

Meet the new Shark® Clean & Empty Cordless Stick Vacuum & Auto-Empty System. Clean & Empty features a redesigned auto-empty base and a lightweight design for versatile cleaning. The cordless stick vacuums auto-empty system is Always Ready, Always Charged, Always Empty & ready for the next clean. With an auto-adjusting brushroll, clean with convenience and power on any surface.
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Item No. BU3521
3.5 out of 5 Customer Rating

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$249.99 Price reduced from $399.99 to
Five (5) Year Limited Warranty
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  • AUTOMATICALLY CHARGES & EMPTIES AFTER EVERY CLEAN: Return the vac to its charging dock, where it automatically empties into the base. After every clean: no more dirt on your hands, no more dust clouds in your home, no more cleaning after you clean.
  • LIGHTWEIGHT MANEUVERABILITY: The redesigned cordless stick vacuum is 30% lighter vs. Shark® Vertex® Pro.
  • REMOVABLE HANDVAC: Transforms into handheld vacuum for lightweight above floor cleaning.
  • UP TO 40 MINUTES OF RUNTIME*: Deep clean your whole home with up to 40 minutes* of runtime. (*In ECO mode, measured at the hand vacuum.)
  • UP TO 500X LESS DUST EXPOSURE** VS. TRADITIONAL EMPTYING: Fine dust and debris get sealed away after every clean, keeping them out of the air you breathe-- no more dust clouds. (*Based on third party-plume testing while emptying vs. Shark® Navigator® upright manual empty US/CAN NV130.)
  • HEPA FILTRATION AND ANTI-ALLERGEN COMPLETE SEAL: Captures and traps over 99.97%* of dust and allergens. (*Based on ASTMF1977, down to .3 microns. Allergens refers to non-living matter.)
Model : BU3521
Color : Rotator White+ Peacock Blue
Weight : 12.3 lbs
Warranty (Years) : 5
Warranty on Part (Years) : 2
LED Lights : true
Cleaning Path Width : 10.4 in
Product Dimensions : 14.69 in L x 10.43 in W x 43.5 in H
Number Of Batteries Included : 1
Voltage : 120 volts
Wattage : 240 watts
Wattage Peak : 240 watts
Amperage : 2.5 amps
Hazmat Class : Lithium Ion Battery with or in Equipment

  • Handvac(with rechargeable battery pack and Auto Empty Dust Cup), Straight Wand+Storage Clip, Compact Powerfins Nozzle with Floor Detect(removable brush roller), 1.3L AED, 8" Duster Crevice Tool Pet Multi Tool
  • Auto-Empty Charging dock
  • 8" Duster Crevice Tool
  • Pet- Multi tool

Free shipping on all orders of $99 or more. Orders of less than $99 may be subject to a $10 shipping fee. The estimated delivery time is between 4–6 business days.

Free shipping on all CO2 canisters and refill boxes. Free shipping on Ninja Thirsti™ Flavored Water Drops $30 or more.

Note: Thirsti™ devices, flavors, CO2 canisters, Ninja™ FlexFlame™ Outdoor Cooking System, and Shark™ CryoGlow™ Cooling + LED Face Mask cannot be shipped to Canada, Hawaii, Alaska, Puerto Rico, or Guam.

  • Hawaii & Alaska: Orders shipped are subject to a $100 surcharge.
  • Puerto Rico & Guam: Orders shipped are subject to a $175 surcharge.
  • Canada: We're sorry, but we no longer ship to Canada from this site. Please visit our Canadian store for local shipping options.

Items that come in bundles will be delivered in multiple shipments. A separate email will be sent for each tracking number.

SharkNinja offers a 60-day money back guarantee or a 90-day money back guarantee on purchases for select products. The applicable money back guarantee will be stated with your order.

Exclusions: Money back guarantees are not available on Ninja CO2 canisters, refill boxes, Ninja Thirsti™ Flavored Water Drops, or FlexFlame Outdoor Cooking System.

Shark® Clean & Empty Cordless Stick Vacuum & Auto-Empty System

$249.99 Price reduced from $399.99 to
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Free shipping on all orders over $99. Exclusions may apply. For more details see shipping information.

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