Quantity: 3Net Weight: .42 oz. EachCreates A Deep-Penetrating Fog That Flushes Bugs Out From Where They Hide And Kills Them On ContactWhen Activated It Fills The Room With A Dry, White Cloud Of Fog Which Stays In The Air For 3 Hours Of Treatment With No Wet Mess Or ResidueOne Unit Treats Up To 2,560 Cu. Ft.