Abstract: A window anti-fog system for preventing fogging between windowpanes. The window anti-fog system includes an aperture within a lower portion of a first windowpane, a gas container containing a pressurized volume of gas, and a delivery tube fluidly connected to the gas container with a distal portion inserted within the aperture within the first windowpane. The delivery tube preferably has a size smaller than the aperture for allowing air to escape, however, another opening within the windowpane may be utilized. The gas container preferably contains a gas lighter than air such as nitrogen. A valve between the gas container and the delivery tube controls the flow of the gas into the interior cavity between the first windowpane and a second windowpane.

Abstract: A window anti-fog system for preventing fogging between windowpanes. The window anti-fog system includes an aperture within a lower portion of a first windowpane, a gas container containing a pressurized volume of gas, and a delivery tube fluidly connected to the gas container with a distal portion inserted within the aperture within the first windowpane. The delivery tube preferably has a size smaller than the aperture for allowing air to escape, however, another opening within the windowpane may be utilized. The gas container preferably contains a gas lighter than air such as nitrogen. A valve between the gas container and the delivery tube controls the flow of the gas into the interior cavity between the first windowpane and a second windowpane. As the gas rises within the interior cavity, the gas eventually displaces the air within the interior cavity thereby forcing the air outwardly through the aperture about the delivery tube.