VISIO changes the surface of glass or plastic panes. Small drops, which will fog up the glass, will be flattening by the coating.
The constant flattening of the drops allows you to see unhindered through the fogged window.
The VISIO anti-fog coating lasts for many months on the treated surface. This is where VISIO differs significantly from other anti-fog products.
Car windows, caravan windows
Plane and boat windows
Inner surfaces of helmet visors
Safety and sun glasses
Diving, swimming, ski goggles