AirRapid Flex BEL01843FLX vs BU3521UK Cordless Vacuums

Torn between AirRapid Flex BEL01843FLX and BU3521UK for your next cordless vacuum?

We examine the AirRapid Flex BEL01843FLX – a battery-power vacuum by Beldray, comparing runtime, dust tank, and costs, with – BU3521UK by Shark, analysing real-world vacuuming performance.

By assessing these vacuums – the AirRapid Flex BEL01843FLX and BU3521UK from BELDRAY and SHARK, you get the best floorcare machine.

Best Cordless Vacuum Pick

BELDRAY AirRapid Flex BEL01843FLX vs SHARK BU3521UK – key Specifications

AirRapid Flex BEL01843FLX and BU3521UK Cordless Battery Run Time

BELDRAY Stick cordless vacuums, like the AirRapid Flex BEL01843FLX, provides lightweight portability without mains cables. BU3521UK Stick is also cordlessly powered by a SHARK rechargeable battery.

The Shark BU3521UK has a battery supply runtime of 40 minutes of cleaning, compared to the Beldray AirRapid Flex BEL01843FLX which has 35 minutes life.

• BELDRAY AirRapid Flex BEL01843FLX Runtime: 35 mins continuous vacuuming
• SHARK BU3521UK Runtime: 40 mins continuous vacuuming

Charging times between the AirRapid Flex BEL01843FLX and BU3521UK varies – check manual.

Cordless Vacuum Dust Tank Capacity

Both Beldray AirRapid Flex BEL01843FLX and Shark BU3521UK are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.5 litre and 0.42 litre tank, respectively. The BU3521UK by SHARK holds up to 0.42 Litre of compressed dirty particles. The AirRapid Flex BEL01843FLX by BELDRAY has a capable capacity of 0.5 litre for manual disposable.

• AirRapid Flex BEL01843FLX onboard dirt/dust tank size: 0.5L
• BU3521UK onboard dirt/dust tank size: 0.42L

Floor Cleaning Types

Beldray’s AirRapid Flex BEL01843FLX and Shark’s BU3521UK 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 BU3521UK and AirRapid Flex BEL01843FLX can’t vacuum liquids. For this, a SHARK or BELDRAY ‘wet and dry’ vacuum is needed.

Most Beldray and Shark battery powered vacuums include accessories. Check AirRapid Flex BEL01843FLX or BU3521UK manual for specifications and attachments.

Vacuum Filtration

The BU3521UK and BELDRAY AirRapid Flex BEL01843FLX include effective filters to capture dust, dander, pollen, hairs, and fibres.

BELDRAY and SHARK use HEPA, foam, or cloth, filters. AirRapid Flex BEL01843FLX and BU3521UK maintain suction and clean exhaust air.

SHARK and BELDRAY Reviews

Combined feedback from 544 reviewers shows the AirRapid Flex BEL01843FLX with a rating of 4.6/5 stars, and the BU3521UK vacuum gains a 4.4/5 average from 128 reviews, showing comparable reliability results.

Brand	Model	Runtime	Weight	Tank	Best Price
BELDRAY	AirRapid Flex BEL01843FLX	35 M	3.1	0.5L	£79.99
SHARK	BU3521UK	40 M	2.7	0.42L	£349.99