✨ Clean smarter, not harder with Shark’s auto-empty magic! 🧼
The Shark Clean & Empty Cordless Vacuum BU3521UK revolutionizes home cleaning with its self-emptying base that stores dirt for up to 30 days, a powerful 40-minute runtime, and a lightweight design 30% lighter than previous models. Featuring an anti-hair wrap brush-roll that auto-adjusts to floor types and a sealed system trapping 99.9% of dust and allergens, it ensures a thorough, hassle-free clean every time. Comes with pet and crevice tools plus a charging dock for convenience, backed by a 5-year guarantee.
Brand | Shark |
Model Number | BU3521UK |
Colour | White/Blue |
Product Dimensions | 35.3 x 26.4 x 109.2 cm; 2.7 kg |
Capacity | 1.3 litres |
Power / Wattage | 240 watts |
Noise Level | 80 dB |
Runtime | 40 minutes |
Special Features | Auto-Empty Base, Anti-Allergen Complete Seal, Anti Hair Wrap, Auto-Adjusts to Floor Type, Charging Dock, Up to 40 Mins run-time |
Item Weight | 2.7 kg |
�**�
Compact, great suction, but noisy.
So far so good, though I will update if required.The good bits:Brilliant suction. Nice and compact if you have a smaller home. Nice and lightweight to manoeuvre. Performs very well on hard floors. Self emptying dust receptacle is great, especially if you don’t want to handle dead spiders! Bright headlights for darker areas. Great for animal hair.Not so good bits:The self emptying dock doesn’t always discharge everything, sometimes it needs a little shake. Not quite as good on carpeted areas, but still performs better than most. Charging lead isn’t that long. Run time not quite as long as it states, but still adequate.Emptying dock is noisy, not so good if you’re in a flat or terraced. Even though we’re detached, our neighbour claims to have heard it when we used it late one evening.Overall, bought this to replace a cordless Miele, and it (so far) has performed very well. Having recently moved to a larger house, it’s perfect for moving from room to room without the faff of plugging and unplugging. Not all of our rooms are used regularly, so just need a light going over most days.Husband has been doing some major building renovations, for which we’re using the Henry, but this is just perfect for everyday mess from the kids.Recommended if you can get it at the sale price.
L**U
Fantastic
Just wow, what a piece of kit! Works perfectly, really strong motor, blocks the vents very quickly though so keep an eye on it. If you vacuum everyday then you won't have an issue.....we obviously don't, once a week so it blocks up (little malting dog and wife males more)The lights are brilliant, nice and light weight. Never known suction better and I've had them all! Very easy to maneuver around. I will recommend to purchase a spare battery though! We use it on boost constantly and you definitely need 2 batteries for a 3 bed house.
J**E
Happy with this product
Great product, easy to use although it’s a bit heavy at first but got use to it.It’s efficient and quieter than other vacuums I’ve had.A great feature is the bent arm so can easily vacuum under furniture without hurting your back. Also there’s a display which shows the battery usage. Battery lasts longer than my Dyson.Only snag is emptying…can be a bit tricky. Have to release it right inside the bin or it will be everywhere.
C**1
Great hoover
Faffed around for ages trying to decide what hoover to get, wanted something that we could leave out all the time to grab and clean up crumbs/messes in the kitchen and the rest of the downstairs as I’ve bought some crap hoovers in the past. This is fab! Really good suction, love that it doesn’t need emptying all the time and as it’s always charged runtime hasn’t been an issue yet! Great piece of kit and not too heavy. Also looks good in the kitchen!
L**L
Brilliant vacuum!
Brilliant vacuum! Very easy to set up. Comfortable and lightweight to use and works beautifully.I have two Shih Tzus and it clears their fur without effort. Well worth buying!
F**E
Really Sucks!
Compared to other cordless rechargeable vacuums I have experienced I was a little sceptical about the potential efficiency of this model.Needn’t have worried - it really sucked! A good solid vacuum that fitted into a cupboard with the restriction of a low top shelf. Very little extra height needed above to lift off the stand. The inbuilt sensors are brilliant. Most of the house has wood flooring apart from the bedrooms and the Shark efficiently detects the difference between this and the carpeted area and adjusts accordingly. Also impressed with the edge detectors. This is where most hard to access dust collects but the sensor detects the edge and provides extra suction. It is also to be commended that the head sucks when pulling in reverse. The auto empty system also works well albeit a little scary when placing on the charging stand and the empty function takes over!
G**
Not a cyclonic cleaner so will easily clog the filter
Why did you choose this product over others?:This looked like an amazing vacuum cleaner, with its waste bin collecting base, flexi hose, brush technology and excellent cleaning performance. All those features were as described and worked perfectly... for about an hour of use. Because once dust started to collect inside the waste bin, the filters immediately clogged, causing the vacuum motor to overheat and shut down. Now I don't live in a particularly dusty home, and my previous cordless worked without issue. No, it's because this cleaner is NOT cyclonic. That's a major flaw, because the dust just heads straight to the mesh filter and blocks it. This issue has been mentioned in a lot of online reviews. Oddly, the US version is cyclonic, so I can only assume there is some sort of intellectual property licence issue.I contacted Shark, who gave me things to try, I even replaced the filters, but again after a few minutes use it would stop working. They deemed it was malfunctioning (oh really?) and asked me to return it for a refund. Which I did. That wasn't easy either, as I no longer had all the internal packaging and I had to wait for an unannounced collection from UPS any day that suited them!It's a shame, as this showed a lot of promise at a good price. But as this is documented as an issue in other reviews I cannot recommend this at all. Storage capacity:ExcellentDurability:Very poorBuild quality:GoodBattery life:GoodPower:GoodWeight:Average
Trustpilot
2 months ago
2 weeks ago