Turn off and unplug the air purifier before beginning.

Unscrew the one 1.2 cm screw holding the grate at the top with a TR10 Torx screwdriver.

Use a prying tool to carefully pry along the outer edges to disengage the inner retaining clips.

These retaining clips can be difficult to disengage, but releasing two clips on the same side should allow you to easily remove the grate.

Remove the grate.