Unplug the vacuum cleaner from the wall outlet.
Grasp the handle at the top of the collection container. This is the clear section that sits in the center of the Dyson vacuum above the ball. Lift up on the unit to remove it from the cleaner. Place the container on a solid surface such as a counter or table.
Lift the latch on the side of the collection container to open the top. The latch sits on the same side as the smaller end of the collection container handle.
Grab the circular filter at the top of the container and lift it out. Insert the replacement filter and close the container. Push down on the latch to secure it.
Reassemble the vacuum cleaner by placing the collection container back in its place.