Dyson cyclone V10 User Manual page 5

Emptying your bin
Empty as soon as the dirt reaches the MAX level – don't overfill. Using your
machine when the dirt is above the MAX line may affect the performance
and require more frequent filter washing.
Remove your wand
Press the red wand release button, on the top of the wand, and pull the wand
away from the bin.
Release the dirt
Hold the machine over the bin, pointing downwards.
Firmly push the red bin release button. The bin will slide down, cleaning the
shroud as it goes, and the bin base will open.
The bin base won't open if the red bin release button isn't pushed down all
the way.
Minimise dust contact
Cover your bin tightly in a dust proof bag while you empty. Remove your bin
carefully, seal the bag tightly and dispose.
click
Close the bin
Push the bin base upwards until your bin and bin base click into place.