Lollipop Sound to Silent (Equivalent)

[Google10]

EDIT: I'm an *****. Thanks to the poster below. Apparently I can't call myself a word starting with 'i' that I didn't know was a bad one.

 

[justafew]

From any screen, just click down on your Volume button. The volume slider will appear and at the bottom, you will see the options for Do Not Disturb - Silent, Priority, Off.