Airgo vs BU3521UK Cordless Vacuums

Torn between Airgo and BU3521UK for your next cordless vacuum?

We examine the Airgo – 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 Airgo and BU3521UK from BELDRAY and SHARK, you get the best floorcare machine.

Best Cordless Vacuum Pick

BELDRAY Airgo vs SHARK BU3521UK – key Specifications

Airgo and BU3521UK Cordless Battery Run Time

BELDRAY Stick cordless vacuums, like the Airgo, 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 Airgo which has 45 minutes life.

• BELDRAY Airgo Runtime: 45 mins continuous vacuuming
• SHARK BU3521UK Runtime: 40 mins continuous vacuuming

Charging times between the Airgo and BU3521UK varies – check manual.

Cordless Vacuum Dust Tank Capacity

Both Beldray Airgo and Shark BU3521UK are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.7 litre and 0.42 litre tank, respectively. The BU3521UK by SHARK holds up to 0.42 Litre of compressed dirty particles. The Airgo by BELDRAY has a capable capacity of 0.7 litre for manual disposable.

• Airgo onboard dirt/dust tank size: 0.7L
• BU3521UK onboard dirt/dust tank size: 0.42L

Floor Cleaning Types

Beldray’s Airgo 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 Airgo 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 Airgo or BU3521UK manual for specifications and attachments.

Vacuum Filtration

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

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

SHARK and BELDRAY Reviews

Combined feedback from 73 reviewers shows the Airgo with a rating of 4.3/5 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	Airgo	45 M	7.4	0.7L	£140.00
SHARK	BU3521UK	40 M	2.7	0.42L	£349.99