BU3521UK vs Detect Clean IW4621UKT Cordless Vacuums

Torn between BU3521UK and Detect Clean IW4621UKT for your next cordless vacuum?

We examine the BU3521UK – a battery-power vacuum by Shark, comparing runtime, dust tank, and costs, with – Detect Clean IW4621UKT by Shark, analysing real-world vacuuming performance.

By assessing these vacuums – the BU3521UK and Detect Clean IW4621UKT from SHARK and SHARK, you get the best floorcare machine.

Best Cordless Vacuum Pick

SHARK BU3521UK vs SHARK Detect Clean IW4621UKT – key Specifications

BU3521UK and Detect Clean IW4621UKT Cordless Battery Run Time

SHARK Stick cordless vacuums, like the BU3521UK, provides lightweight portability without mains cables. Detect Clean IW4621UKT Stick is also cordlessly powered by a SHARK rechargeable battery.

The Shark Detect Clean IW4621UKT has a battery supply runtime of 60 minutes of cleaning, compared to the Shark BU3521UK which has 40 minutes life.

• SHARK BU3521UK Runtime: 40 mins continuous vacuuming
• SHARK Detect Clean IW4621UKT Runtime: 60 mins continuous vacuuming

Charging times between the BU3521UK and Detect Clean IW4621UKT varies – check manual.

Cordless Vacuum Dust Tank Capacity

Both Shark BU3521UK and Shark Detect Clean IW4621UKT are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.42 litre and 1.3 litre tank, respectively. The Detect Clean IW4621UKT by SHARK holds up to 1.3 Litre of compressed dirty particles. The BU3521UK by SHARK has a capable capacity of 0.42 litre for manual disposable.

• BU3521UK onboard dirt/dust tank size: 0.42L
• Detect Clean IW4621UKT onboard dirt/dust tank size: 1.3L

Floor Cleaning Types

Shark’s BU3521UK and Shark’s Detect Clean IW4621UKT brush heads are effective on every surface – carpets & deep-pile rugs, hard floors (laminate, wood, tiles), vinyl, even upholstery, and stairs.

Their only limitation is the Detect Clean IW4621UKT and BU3521UK can’t vacuum liquids. For this, a SHARK or SHARK ‘wet and dry’ vacuum is needed.

Most Shark and Shark battery powered vacuums include accessories. Check BU3521UK or Detect Clean IW4621UKT manual for specifications and attachments.

Vacuum Filtration

The Detect Clean IW4621UKT and SHARK BU3521UK include effective filters to capture dust, dander, pollen, hairs, and fibres.

SHARK and SHARK use HEPA, foam, or cloth, filters. BU3521UK and Detect Clean IW4621UKT maintain suction and clean exhaust air.

SHARK and SHARK Reviews

Combined feedback from 128 reviewers shows the BU3521UK with a rating of 4.4/5 stars, and the Detect Clean IW4621UKT vacuum gains a 4.2/5 average from 85 reviews, showing comparable reliability results.

Brand	Model	Runtime	Weight	Tank	Best Price
SHARK	BU3521UK	40 M	2.7	0.42L	£349.99
SHARK	Detect Clean IW4621UKT	60 M	2.78	1.3L	£235.99