Potentially explosive areas are often, but not always, posted and can include blasting areas, fueling stations, fueling areas (such as below decks on boats), fuel or chemical transfer or storage facilities, or areas where the air contains chemicals or particles, such as grain dust, or metal powders.

Turn off your mobile device before entering such an area, and do not charge batteries. In such areas, sparks can occur and cause an explosion or fire.

Your charger, mobile device, battery (if user-removable), device display, user's guide, or packaging may contain symbols, defined as follows:

Symbol	Definition
	Important safety information follows.
	The package and paper products that came with your mobile device should be recycled.
	Don’t dispose of your battery or mobile device in a fire.
	For indoor use only.