Search  for anything...

Shark Clean Lightweight Cordless Cleaner with HEPA Filter, Powerful Suction, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White BU3521, Compact

  • Based on 99 reviews
Condition: New
Checking for product changes
$329.64 Why this price?
Save $20.35 was $349.99

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Wednesday, Sep 18
Order within 4 hours and 43 minutes
Available payment plans shown during checkout

Style: Crevice Tool + Pet Multi-Tool


Features

  • 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.)
  • 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.)
  • AUTO-ADJUSTS TO FLOOR TYPES: Auto-adjusting & Multi- surface 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.
  • 8" Duster Crevice Tool, Pet-Multi tool, Removable DC-Jack Battery Pack (spare battery packs and charging cords sold separately)

Description

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.

Brand: Shark


Special Feature: Spotless Cleaning, High Precision Sensors, Lightweight, Cordless, HEPA


Filter Type: HEPA Filter


Included Components: Crevice Tool


Is Cordless?: Yes


Brand: Shark


Special Feature: Spotless Cleaning, High Precision Sensors, Lightweight, Cordless, HEPA


Filter Type: HEPA Filter


Included Components: Crevice Tool


Is Cordless?: Yes


Capacity: 1.3 Liters


Wattage: 180 watts


Runtime: 40 minutes


Charging Time: 5 Hours


Recommended Uses For Product: Carpet, Hard Floor


Form Factor: Stick, Handheld


Color: White


Model Name: Clean & Empty


Product Dimensions: 14.69"L x 10.43"W x 43.5"H


Battery Description: Lithium-Ion


Amperage: 25 Amps


Battery Life: 40 minutes


Manufacturer: SharkNinja


Number of Items: 1


Controller Type: Push Button


Control Method: Touch


Style: Crevice Tool + Pet Multi-Tool


Portable: Yes


Is Electric: No


Finish Type: Polished


UPC: 622356647465


Manufacture Year: 2024


Item Weight: 11.24 pounds


Country of Origin: China


Item model number: BU3521


Batteries: 1 Lithium Ion batteries required. (included)


Finish types: Polished


Batteries required: Yes


Battery type: Lithium-Ion


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Wow!
Style: Crevice Tool + Pet Multi-Tool
Wow! This was first impression after I vacuumed the bedroom and hall. Those two rooms plus the kitchen are where my two Golden Retrievers spend most of their time indoors. Hair is a constant problem even though I groom them daily. This cordless stick Shark vacuum was lighter than the other cordless Shark and did an even better job. It had lots of power and suction. Because it was lighter, it took less time to vacuum. I have asthma, so handling the cup each time on my other cordless Shark meant wheezing, even when wearing a mask. But THIS cordless Shark has a stand and box that automatically empties the cup when you put ot on the charging stand. I turned it off and put it on the charger and- whoosh! Three seconds later the collection cup was pristinely clean. WOW! I am not easily impressed but this vacuum is wonderful. I now have three Shark vacuums. My first was a large, corded vacuum and heavy. I worried about tripping on the cord. My second was a cordless Shark but emptying the collection cup was hard on my asthma. This one - great value for money. I am going to look into buying stock in Shark. ... show more
Reviewed in the United States on July 12, 2024 by Prof Zoe

  • Love this vacuum. It is working so well with lots of power
Style: Crevice Tool + Pet Multi-Tool
Size, light weight, functionality , ease of use is awesome. Would recommend to all. Especially love the recharge station with the suction garbage function. And no cords to worry about! Can’t go wrong.
Reviewed in the United States on August 9, 2024 by jlynn

  • Real .........................
Style: Crevice Tool + Pet Multi-Tool
...Nice unit. It was very easy to assemble. It does work great, The suctions is super, and easy to handle unit. The instructions are printed on the inside of the box which is good, but the only thing I didn't particularly care for is the printed instruction paper. It could have a bolder print, as opposed to a print that fades. As you finish reading the faded instruction sheet, it is easy to operate it. When you receive the unit the battery is 30% full, therefore it was operational for about 10 minutes. The self disposing function is very nice. When you place the unit on the charger stand; it discharges or dumps the picked up dust to the bin underneath. Overall I like this unit a lot better than other cheaper vacuum cleaners. That's it for now as I need to vacuum. ... show more
Reviewed in the United States on August 11, 2024 by Piervito

  • Just fabulous
Style: Crevice Tool + Pet Multi-Tool
This is such a fabulous cordless vacuum. I have a small apartment with vinyl plank and low pile ruggable rugs. Many vacuums suck too hard on ruggable and get almost stuck in place from suction so are worthless. I've tried the Dyson V8 and V12. Dyson's clean like crazy, that's for sure. But they are unwieldy, unbalanced, hard to empty dust bin, small dust bins, no led lights. I think so overrated. This little beauty automatically adjust beautifully between my ruggables and my floor. It has a nice array of led lights. It is lightweight. I've not even experimented with echo and boost as auto works so well. I have a lot of cats. It is great picking up crystal litter, good at getting up pellets, average at picking up dry food so not 100%. But I'm satisfied with hard floor cleaning. I might try to do boost tomorrow. Now we come to the creme de la creme - the self-emptying dust bin. WOW. Just put in on the base and it immediately sucks all the debris in the bin into a nice sized container. I do not have to do a thing except empty that container now and then. And, now this is odd, the Dyson bins would fill up in 3 to 5 minutes. This bin has not filled up and yet my cat hair is gone off the carpet. It is as though the Dyson shreds and separates the hair, somehow multyplying it or spreading it out or something. I'm totally pleased. I don't know how this would be on a high pile carpet. ... show more
Reviewed in the United States on August 1, 2024 by Amazon Customer

  • Works great! Easy to clean!
Style: Crevice Tool + Pet Multi-Tool
This is a dream of a product. It’s slim enough to store away, battery charge lasts through a day of cleaning, suction is great and I love the ability to clean the main base 1x per month. The body can be heavy and may be awkward to lift up and out of base but I’m 5’1” and that could be the reason for the slight awkwardness. All in all an amazing product ... show more
Reviewed in the United States on July 28, 2024 by Jessica P

  • Best vacuum ever!
Style: Crevice Tool + Motorized Hand Tool
It’s so lightweight! It’s cordless! It’s amazing for pet hair! Love the detachable hand vac with small beater bar for stairs and small places. The head swivels! It auto adjusts for carpet to hard floors. ♥️
Reviewed in the United States on July 29, 2024 by B. K. Hokel

  • Suction great! The light is terrible!
Style: Crevice Tool + Motorized Hand Tool
I needed a cordless vacuum. I watched TONS of reviews. Considered high and medium end models. Stayed away from the cheap units...got burned. Hopefully I don't get burned with this vacuum. But all in all the vacuum is pretty good. It does have a brush roller that does good at getting pet hair. I do have to go over two or three times but I had to do that with the more powerful plug in vacuum so that is okay. The thing that really bug me is how poorly laid out the led lights are on the unit. Two issues....they only shine about 1.5" to 2" in front of the unit....and the color LED they choose doesn't highlight the stuff on the floor. If you are trying to vacuum up hair...you can't see it on the floor....the LED doesn't make it pop where you can it. So...big thumbs down. The lights should have been installed legit on the front of machine...and they should have been bright white....and it should have illuminated the floor and everything on it....so you have something to aim for. So, I installed my own LED lights....I'm not going to return the unit for this reason, but my lights are bright enough to illuminate every strand of hair...big or small...so I can suck it up and get the floors 100% free of hair. So there you go...the built in led lights suck on this vacuum but everything else it great. If you need light to vacuum...hard pass!!!! If it doesn't matter....Highly recommend! ... show more
Reviewed in the United States on July 11, 2024 by Mr. Matthew S. Wilson

Can't find a product?

Find it on Amazon first, then paste the link below.