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Shark Clean & Empty Cordless Vacuum with Auto Empty System
BU3521ANZ
NOT AVAILABLE
Product Overview
Key Features
- 1.3 Litre bin capacity with bagless design
- 180 Watt power for hard floors and carpets
- Up to 40 minutes cordless run time
- Pet friendly with auto empty charging dock
Key Specifications
- Brand:
- Shark
- Model Number:
- BU3521ANZ
- Surfaces:
- Hard Floors, Carpets
- Bagged/Bagless:
- Bagless
- Bin/Bag Capacity (L):
- 1.3
Vacuums & Cleaning
- Pet Friendly:
- Yes
Power & Charging
- Power:
- 180W
- Run Time (Up To) Minutes:
- 40
General Information
- Type:
- Stick Vacuum
- Colour:
- White
- Supplier Colour:
- White & Navy
- What's In The Box:
- 1x Shark®Clean & Empty, 1x 8” Duster Crevice Tool, 1x Pet Mutli Tool, 1x Auto Empty Charging Dock
Warranty
- Manufacturer's Warranty:
- 2 Year
Vacuums & Cleaning
- Pet Friendly:
- Yes
General Information
- Type:
- Stick Vacuum
- Colour:
- White
- Supplier Colour:
- White & Navy
- What's In The Box:
- 1x Shark®Clean & Empty, 1x 8” Duster Crevice Tool, 1x Pet Mutli Tool, 1x Auto Empty Charging Dock
Product Dimensions
- Product Height (mm):
- 1100
- Product Width (mm):
- 265
- Product Depth (mm):
- 140
- Product Weight (kg):
- 4.5
Box Dimensions
- Box Height (mm):
- 725
- Box Width (mm):
- 250
- Box Depth (mm):
- 350
- Box Weight (kg):
- 8
Product Reviews of Shark Clean & Empty Cordless Vacuum with Auto Empty System
Overall Rating Snapshot
4.6 out of 5 stars from 171 reviews
96% of users recommend this product
What customers say, summarised by AI
- Lightweight and easy to manoeuvre, ideal for quick clean-ups.
- Auto-empty system is highly convenient and reduces mess.
- Good suction power, especially effective on hard floors and pet hair.
- Automatically adjusts suction for floor type, enhancing versatility.
- Battery life suits small to medium homes, but may require a second battery for larger carpeted spaces.
- Some users report issues with suction on thick carpets and battery replacement availability.
Pros
Cleaning (47)
Easy (41)
Value (5)
Efficient (3)
Quality (2)
Speed (2)
Quiet (1)
Easy to use light and the auto empty is great
Joy
Confirmed purchase 28 August 2026
Published on 22 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Good for the price!
This was purchased as a gift for my sister. She loves the vacuum, especially the self emptying feature. It definitely gets the job done as she has a small two bedroom apartment. If you have a larger home, I definitely would recommend purchasing the next model up or two up for a longer run time
Anonymous
Confirmed purchase 2 August 2026
Published on 15 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Good for the price!
This was purchased as a gift for my sister. She loves the vacuum, especially the self emptying feature. It definitely gets the job done as she has a small two bedroom apartment. If you have a larger home, I definitely would recommend purchasing the next model up or two up for a longer run time
Anonymous
Confirmed purchase 2 August 2026
Published on 15 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Another Great (white) Shark
Simple to use, simple to clean, great battery life. The auto mode change when switching from hard to carpet floors is a great feature making cleaning less of a chore.
Stuart Naish
Confirmed purchase 14 August 2026
Published on 9 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Shark cordless empty vacuum cleaner
tLove my shark cordless vacuum cleaner so easy to use does the job in no time.
Anonymous
Confirmed purchase 12 August 2026
Published on 9 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Awesome feature
Love the self cleaning system
Nadah
Confirmed purchase 8 August 2026
Published on 8 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Shark Clean & Empty Cordless Vacuum
Good collection of dust. Battery OK, about an hour. Hard to push in thick carpet, better to pull. Emptying dust automatic feature great.
Michael
Confirmed purchase 10 August 2026
Published on 2 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Good product
Good suction and auto empty is handy
YM
Confirmed purchase 8 February 2026
Published on 28 August 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Great vacuum with good suctions and battery life. I'm able to do the living/dining area, kitchen, my bedroom and a bathroom on the regular suction setting before the battery dies. I'm always impressed with what it picks up, and the auto empty system combined with the charging dock is a feature I didn't realise I needed until I had it. It's also quite light when compared with some of the other cordless vacuums i've used before.
Madeline
Confirmed purchase 14 July 2026
Published on 27 August 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Fantastic product
Excellent product easy to use and easy to charge.
Elenor Matthews
Confirmed purchase 30 July 2026
Published on 27 August 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
You've viewed 10 of 171 reviews
ABOUT THE GOOD GUYS REVIEWSThe Good Guys product reviews are collected from verified purchasers who may have received an incentive in return for providing an authentic review.
The below information is AI generated based on Australian websites information around this item. We have done our best to ensure its accuracy but suggest verifying any information within this tab before purchasing.
At a glance
The Shark Clean & Empty Cordless Vacuum with Auto Empty System is a lightweight stick vacuum built for convenient everyday cleaning across hard floors and carpets. It suits busy households and pet owners who want less mess when emptying and simple cordless handling. Key strengths include the auto-empty dock, 40-minute runtime and low 2.7 kg weight. Its main limitation is that battery runtime is modest compared with some premium long-run cordless models.
What it’s great for
- Everyday Home Cleaning
- Pet Hair Pickups
- Hard Floor Cleaning
- Carpet Maintenance
- Quick Cordless Clean-ups
Where it works best
- Homes
- Apartments
- Multi-Surface Living Areas
- Carpeted Bedrooms
- Hard Floor Kitchens
Who it’s for
- Busy Households
- Pet Owners
- Apartment Dwellers
- Families
- Shoppers Wanting Low-Mess Emptying
Things to consider
With up to 40 minutes of runtime in Eco mode, it may offer less sustained cleaning time than some premium cordless vacuums designed for larger homes or longer deep-clean sessions.
Pet hair performance score
8/10 - pet multi tool and self-cleaning brushroll make it well suited to regular pet hair pick-up.
Carpet vs hard floor suitability
Well suited to both carpet and hard floors, with automatic floor adjustment and a multi-surface brushroll.
Portability rating
9/10 - at 2.7 kg, it is easy to carry, manoeuvre and use for quick cleans.
Noise level vs category average
About average for a cordless stick vacuum; no low-noise claim is specified.
Allergy friendliness
Good - the auto-empty system seals fine dust in the base and is claimed to create 500x less dust exposure than manual emptying.
Key benefits
- Auto-Empty Base: The 1.3 L dock collects dust and debris automatically after cleaning, reducing how often you need to empty the bin by hand.
- Up to 30 Days Dust Capacity: The base can hold up to 30 days of dust and debris, so everyday maintenance feels more hands-off.
- Lightweight 2.7 kg Design: Easier to carry, steer and move between rooms than heavier full-size vacuums.
- Up to 40 Minutes Runtime: Gives you enough cordless cleaning time for regular whole-room or small-home cleans in Eco mode, measured at the hand vacuum.
- Auto-Adjust Floor Nozzle: Brushroll speed adjusts to floor type to improve cleaning performance across carpet and hard floors.
- PowerFins Multi-Surface Brushroll: Maintains cleaning contact to lift debris from carpets while staying effective on hard floors.
- Self-Cleaning Brushroll: Helps reduce hair wrap, making it more practical for homes with pets or long hair.
- Included Specialist Tools: The 20 cm crevice tool and pet multi tool help target corners, upholstery and pet messes more effectively.
Q: How does the auto-empty system work on the Shark BU3521ANZ?
A: When the vacuum is docked, the base automatically pulls dust and debris from the handheld bin into its larger 1.3L compartment. That means fewer trips to the rubbish bin, with storage for up to 30 days based on ASTM F608 Eco vs Boost testing.
Q: Is the Shark BU3521ANZ suitable for homes with pets and long hair?
A: Yes. It includes a pet multi tool for upholstery and other pet messes, and the floorhead uses a self-cleaning brushroll designed for no hair wrap. That makes it better suited to regular pet hair pickup than a basic stick vacuum head.
Q: Does the Shark BU3521ANZ adjust between hard floors and carpet automatically?
A: Yes. The nozzle technology auto-adjusts to floor type and changes brushroll speed to suit hard floors or carpet. This is useful in mixed-floor homes because you can move room to room without stopping to swap floor settings manually.
Q: How long does the battery last on the Shark Clean & Empty cordless vacuum?
A: Battery life is up to 40 minutes in Eco mode, measured at the hand vacuum. Actual runtime will be shorter when using the floorhead or higher power settings, so larger carpet-heavy homes may need cleaning in shorter sessions.
Q: Does the auto-empty base help reduce dust exposure when emptying?
A: Yes. Shark states the base seals fine dust and debris away after each clean, with 500x less dust exposure based on third-party plume testing versus manual emptying. That can be helpful if you want less contact with airborne dust during disposal.
Q: Is the Shark BU3521ANZ light enough for quick daily cleaning?
A: Yes. At 2.7kg, this model is on the lighter side for a cordless stick vacuum, so it is easier to carry between rooms and use for short clean-ups. The trade-off is that cordless models are designed for convenience rather than unlimited runtime.