What is argon filling?
Whereas the space between the panes of windows used to be filled only with air, the inert gas argon is now standard in modern building elements.
Argon is an inert chemical element that belongs to the group of noble gases. Windows with multiple glazing use argon as a filler between the panes of glass, which increases thermal insulation by about 10% compared to dry air as a filler.
The optimal space between the panes with argon is 16mm.