"Dismiss, clear, and manage notifications
From the Lock screen, do any of the following:
Handle a notification you receive while using another app: Pull it down to view it, then swipe up to dismiss it.
Clear notifications: Swipe left over the notification or group, then tap Clear or Clear All.
Send notifications directly to Notification Center: Swipe left over the notification or group of notifications, tap Manage, then tap Deliver Quietly. This prevents these notifications from appearing on the Lock screen, playing a sound, lighting up the screen, or presenting a banner.
To see and hear these notifications again, swipe left on a notification in Notification Center, tap Manage, then tap Deliver Prominently.
Turn off notifications for an app or notification group: Swipe left on the notification or group of notifications, tap Manage, then tap Turn Off."