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You’ll need to purchase a premium vacuum to get these features though.. Of course, there are some downsides to cordless vacuums too – and not just when it comes to cleaning power.. Cordless vacuums have a limited battery run-time, so you need to keep cleaning sessions short.

Fortunately, this is a simple process!.Start by turning the vacuum onto its side, then press the grey button.

You should now be able to twist the main cylinder to unlock it.. Once the cylinder has been unlocked, you’ll be able to pull it away from the rest of the vacuum.Don’t force it – the cylinder should come away easily if you’ve unlocked it correctly..The filter is located in the middle of the cylinder.

There is a silver handle to use for removing it, as shown in the picture above..Step 2: Wash The Filter.

Now that the filter has been removed, the best way to clean it is to rinse it under a cold tap until the water runs clear..

The water flow should be gentle to avoid damaging the filter.During this test, the vacuum is sealed and connected to water via a tube.

The amount of water lifted by the vacuum determines the water lift.. Are The Air Watts of Dyson, Shark, and Other Vacuum Brands the Same?.There’s more than one way to calculate air watts, but the difference is minimal.

That means you can theoretically use this value to compare vacuum cleaners from different brands..Unfortunately, most brands don’t publish information about the air watts of their vacuums.