Shark - Clean & Empty, Cordless Stick Vacuum with 1.3L Auto-Empty System, HEPA, Up tp 40 Min Runtime - White
Key Accessories:
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About This Item
- Key Specs
- Battery Charge Time: 360 minutes (Battery charge time will vary depending on the product configuration, product model, applications loaded on the product, power management setting of the product and the product features used by the customer. Charging time will likely decrease with time and usage of the battery.)
- Cleaning Path Width: 10.43 inches
- Vacuum Type: Stick, Handheld
- Bin Capacity: 0.34 gallons
- Product Weight: 11.24 pounds (The out of box weight of the item.)
- Brush Roll Shut-Off: false
- Bagless: true
- Compatible Floor Type: All floors
- Corded/Cordless: Cordless
- Filter Type: HEPA, Cloth
- Multi Surface: true
- General
- Brand: Shark
- Model Number: BU3521
- Product Name: Clean & Empty, Cordless Stick Vacuum with 1.3L Auto-Empty System, HEPA, Up tp 40 Min Runtime
- Color: White
- Dimensions
- Product Height: 43.5 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Length: 14.69 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Product Width: 10.43 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Features
- Bagless: true
- Filter Type: HEPA, Cloth
- Voltage: 120 volts (Amount of power needed to support an electrical current.)
- Maximum Runtime: 40 minutes
- Warranty
- Warranty - Parts: 5 years
- Warranty - Labor: 5 Years
- Other
- UPC: 622356647465
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 1.3L 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 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.)
- 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)
Whats Included
- Shark Clean & Empty Cordless Stick Vacuum & Auto-Empty System
- Auto-Empty Charging Dock
- 8" Duster Crevice Tool
- Pet Multi-Tool
Q: Why is this Shark vacuum called 'Clean & Empty'?
A: It's called 'Clean & Empty' because it automatically empties the dust and debris into the base after every cleaning session.
Q: How does this vacuum handle different floor types?
A: The vacuum has an auto-adjusting multi-surface brushroll that optimizes brushroll speed for carpets and engages hard floors directly.
Q: How long does the battery last on a single charge?
A: The vacuum provides up to 40 minutes of runtime in ECO mode.
Q: Does this vacuum have a HEPA filter?
A: Yes, it has a HEPA filtration and anti-allergen complete seal that captures and traps over 99.97% of dust and allergens.
Q: What comes with this Shark vacuum?
A: This Shark vacuum comes with a duster crevice tool, pet multi-tool, and a removable DC-jack battery pack.
Q: Does it work on high piles carpet.
A: Absolutely and great job
Q: Is this vacuum cleaner good for pets like dogs and cats
A: Yes picks up anything it goes over and gets in corners that other vacuum heads don't... Lovin it . You won't believe how easy it is to use and maneuver. I can't say enough about this vacuum. I can't believe I have tried 6 other vacuums and just thought this is my last try and bingo... I am so thankful for it because I can actually vaccume every day... YEA!
A: The power supply cord provided with the Shark Clean & Empty vacuum charger is 1.2 meters long. It should be plugged directly into an electrical outlet, and extension cords are not recommended for use with this vacuum.
Reviews
Rating 4.5 out of 5 stars with 335 reviews
- Weight (90)
- Suction Power (69)
- Ease of use (63)
- Overall Performance (56)
- Battery Life (37)
- Dust Bin Size (5)
- Filter (3)
Customer Images
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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.

The Shark PowerDetect Clean & Empty (IP3251) system is the ultimate cordless solution for powerful, intelligent, whole-home deep cleaning. It features an Auto-Empty system that charges & empties your vacuum after every clean, reducing dust exposure by 1000x* vs. traditional emptying. PowerDetect is powered by Shark’s most powerful cordless suction** PLUS a redesigned DuoClean Detect nozzle with dirt-detecting intelligence and multi-directional cleaning, making it THE BEST debris cleaning*** of ANY cordless vacuum. While most vacuums push around debris in the back-stroke, the redesigned DuoClean Detect nozzle eliminates this problem by capturing more**** dirt, dust, and debris in forward AND reverse for faster cleaning*****. PowerDetect has an impressive 70min of runtime§§ and a MultiFlex wand for effortless under-furniture reach and flex storage. (*Based on third party-plume testing while emptying vs. Shark Navigator upright manual empty US/CAN NV130)(**Based on ASTM F558, measured at the hand vacuum, tested in Boost mode)(†Based on Geomean of ASTMF2607 and IEC62885-2 (5.3 & 5.5) vs cordless market)( ǂvs. original DuoClean nozzle)( §vs. Shark Stratos IZ862H)( §§measured at the handvac in ECO mode)

The Shark Pet Cordless Stick Vacuum combines deep-cleaning suction with cordless convenience. Powerful suction delivers deep cleaning on both hard floors and carpets while the vacuum's lightweight design and removable handheld vac allow for cleaning from floor to ceiling. For added convenience, the XL dust cup features CleanTouch technology for hands-off debris disposal.

Meet the smart, lightweight* PowerDetect Speed Clean & Empty, delivering the best debris cleaning** of any lightweight* cordless vacuum. PowerDetect Intelligence senses dirt and floor type, automatically adjusting power for optimized performance. Forward and reverse cleaning captures debris most vacuums miss, for faster†, more efficient cleans. Use MultiFLEX to bend the wand for under-furniture reach. A powerful blue light reveals hidden dust on hard floors. Enjoy up to 60 minutes of runtime ‡, plus an auto-empty dock that seals away fine dust, debris, and allergens*** for up to 45 days. (*At 7lbs. **Based on geomean of ASTMF2607 and IEC62885-2 (5.3 & 5.5) vs. cordless market. **at 7lbs. † vs. IZ862H ‡ Measured in ECO mode, with non-motorized tool ***Allergens refers to non-living matter)
| Pros for Shark - Clean & Empty, Cordless Stick Vacuum with 1.3L Auto-Empty System, HEPA, Up tp 40 Min Runtime - White | |||
|---|---|---|---|
| Weight, Suction Power, Ease of use, Overall Performance, Battery Life | Suction Power, Battery Life, Overall Performance, Weight, Ease of Use | Ease of use, Suction Power, Weight, Battery Life, Overall Performance | Suction Power, Weight, Battery Life |
| Cons for Shark - Clean & Empty, Cordless Stick Vacuum with 1.3L Auto-Empty System, HEPA, Up tp 40 Min Runtime - White | |||
| Dust Bin Size, Filter | Noise Level, Size, Overheating | Carpet Cleaning, Storage, Clogging | There were no cons for this product— |








































