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Features

Meet the new Shark Clean & Empty Cordless Stick Vacuum Cleaner & Auto-Empty System. Clean & Empty features a redesigned 1.3L auto-empty base and a lightweight design for versatile cleaning. With the auto-empty system, cleaning convenience is optimized; Always Charged, Always Empty & ready for the next clean. Inside the base, fine dust and debris is captured after every clean, leaving them out of the air you breathe- Up to 500x less dust exposure*. (*Based on third party-plume testing while emptying vs. Shark Navigator upright manual empty US/CAN NV130.) Clean & Empty has up to 40 minutes of runtime* (*in ECO mode, measured at the hand vacuum) with nozzle technology to auto-adjust to floor type, optimizing brushroll speed for deep carpet cleaning. The Powerfins multi-surface brushroll gives you continuous cleaning contact to dig deep into carpets & directly engage hard floors with self-cleaning brushroll technology allowing for no hair wrap.

  • 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 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.)

  • 500X LESS DUST EXPOSURE** VS. TRADITIONAL EMPTYING

    Fine dust and debris get sealed away after every clean, keeping them out of the air you breahe-- 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.)

  • AUTO-ADJUSTS TO FLOOR TYPES

    Auto-adjusting & MultiSurface brushroll, optimizes brushroll speed for deep carpet cleaning and directly engages hard floors.

  • QUIET MODE

    Provides the option to dock & charge silently, and leave the emptying for later.

  • LED HEADLIGHTS

    Powerful LED lights on the nozzle reveal hidden debris around your home.

  • ACCESSORIES INCLUDED:

    8" Duster Crevice Tool, Pet-Multi tool, Removable DC-Jack Battery Pack (spare battery packs and charging cords sold separately)

What's Included

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

  • Auto-Empty Charging Dock

  • 8" Duster Crevice Tool

  • Pet Multi-Tool

Specifications
  • Key Specs

    Cleaning Path Width
    10.43 inches
    Vacuum Type
    Stick vacuums, Handheld vacuums
    Bin Capacity
    0.34 gallons
    Product Weight
    11.24 pounds
    Brush Roll Shut-Off
    false
    Bagless
    true
    Compatible Floor Type
    All floors
    Corded/Cordless
    Cordless
    Filter Type
    Other
    Multi Surface
    true
  • General

    Product Name
    Clean & Empty Cordless Stick Vacuum & Auto-Empty System, Self Cleaning Brushroll, HEPA Filtration
    Brand
    Shark
    Model Number
    BU3521
    Color
    White
  • Dimensions

    Product Height
    43.5 inches
    Product Length
    14.69 inches
    Product Width
    10.43 inches
  • Feature

    Bagless
    true
    Filter Type
    Other
    Voltage
    120 volts
  • Warranty

    Warranty - Parts
    5 Years
    Warranty - Labor
    5 Years
  • Other

    UPC
    622356647465
Questions & Answers (12)
See All Questions

Review Summary

Rating 4.6 out of 5 stars with 148 reviews

Rating by feature

  • Rating 4.6 out of 5 stars

  • Rating 4.8 out of 5 stars

  • Rating 4.8 out of 5 stars

95%would recommend to a friend

Customers are saying

Customers are delighted by the Shark Clean and Empty Cordless Stick Vacuum's lightweight design, auto-empty feature, and powerful suction. They appreciate the convenience of not having to manually empty the dustbin and the effectiveness of the vacuum on both hard floors and carpets. However, some customers have expressed concerns about the battery life, which they feel could be longer.

This summary was generated by AI based on customer reviews.

Top Mentions filter

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

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    Shark - Clean & Empty Cordless Stick Vacuum & Auto-Empty System, Self Cleaning Brushroll, HEPA Filtration - White

    Model:BU3521
    SKU:6583331
    Your price for this item is $279.99
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