Shark BU3521UKTSB cordless vacuum 40 mins
Product description
At a glance
The Shark Clean & Empty BU3521UKTSB is a cordless stick vacuum that automatically empties into a sealed base, cutting down on frequent bin trips and exposure to dust. Lightweight and manoeuvrable, it suits mixed homes with pets and varied floor types, offering up to 40 mins run time in ECO mode according to the manufacturer.
Tech specs
- Name: Shark Clean & Empty BU3521UKTSB
- Type: Cordless stick vacuum
- Capacity: 1.3L base, 0.42L vacuum
- Weight: 2.7kg
- Run time: 40 mins
- Colour: White Mohogany
Why it’s worth it
This model removes a common annoyance by sealing dirt and trapping fine dust inside the base, with a filtration claim of up to 99.9% at 0.3 to 10 microns based on the IEC test cited by the manufacturer. The Anti Hair Wrap brush-roll reduces hair tangles on carpets and hard floors, which keeps performance steady without constant maintenance. Bear in mind that the 30 day claim depends on usage patterns, household size and debris levels.
Everyday use
Stored and charged on its dock, the vacuum is ready for everyday tidying, and the detachable handheld section makes stairs and upholstery straightforward. It includes a motorised hand tool, crevice and multi-surface tools, plus an anti-allergen brush and a bag for the base. It’s a good fit if you need a low-fuss, pet-friendly cordless that cuts down on emptying and keeps dust contained.
Care & maintenance
Empty the base bag as recommended and rinse removable tools where appropriate, taking care to let parts dry fully before reassembly. Regularly check the brush-roll for trapped fibres to maintain suction and avoid long downtime.