Model: BU3521

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

$399.99

Use code FUN at checkout
Includes Five (5) Year Limited Warranty

Product Description

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 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.

  • • 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.)

Amperage2.5 amps
Cleaning Path Width10.43 in
ColorRotator White+Bold Magenta
Product Dimensions14.69 in L x 10.43 in W x 43.5 in H
Wattage240 watts
LED LightsYes
Hazmat Class/Battery Cell TypeUN3481 – Lithium Ion Battery with or in Equipment
Number of Batteries Included1
VoltageHV:21.6V DCAED: 120V AC volts
Weight12.3 lbs


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

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

Note: Items that come in bundles may 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.

*Canada, HI, AK, GU, PR shipping not available for Shark™ CryoGlow™ Cooling + LED Face Mask.


  • 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 ToolPet Multi Tool
  • Auto-Empty Charging dock
  • 8" Duster Crevice Tool
  • Pet- Multi tool


Shark® Clean & Empty 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.

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.

Cleaning Convenience

30% Lighter Than Shark® Vertex® Pro

Lightweight design for optimized cleaning versatility.

Removable Hand Vac

Transforms to a hand vac for lightweight above-floor cleaning.

Multi-Surface Cleaning

Auto-adjusting nozzle optimizes brushroll speed depending on floor type.

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.)

Auto-Empty System

Locks away dirt, dust, & debris

500x less dust exposure* vs. traditional emptying— fine dust is sealed away after every clean, keeping it out of the air you breathe.

*Based on third party-plume testing while emptying vs. Shark® Navigator® upright manual empty US/CAN NV130.

HEPA & Anti-Allergen Complete Seal

Auto-Empty Base locks away over 99.97%* of dust and allergens.**

*Based on ASTMF1977, down to .3 microns.

**Allergens refers to non-living matter.

Quiet Mode

Use Quiet Mode for silent docking & charging.

Signature Shark Features

Self-Cleaning Brushroll

For powerful pet hair pickup and no more hair wrap.

Redesigned LED Display

Manage battery power and cleaning modes with the redesigned LED display.

Duster Crevice Tool

Manage battery power and cleaning modes with the redesigned LED display.

Pet Multi-Tool

Cleans stubborn pet hair and debris from upholstery.

Shark® Clean & Empty Cordless Stick Vacuum & Auto-Empty System
$399.99