Possible Clues:

• Sprays roses a lot, somehow, though short of time
• Was Eros also affected by spray containers?
• Particles of concern to climatologists
• Restricted flight items
• Vapours sprayed from planes circling sun
• Clouds from cans
• Scourge of the ozone layer
• Many graffitist's paints
• Some hairsprays
• Something the TSA won't let you get away with