Argon gas is an odourless, non-toxic gas that’s injected between panes of sealed glass to increase a window’s insulation and sound proofing. Argon gas increases the R-value (measurement of thermal resistance) of the window or door, minimizes heat exchange through the window, and reduces the possibility of condensation and frost in cold or humid climates.
Unlike oxygen, argon won’t corrode window materials. Because argon is heavier than air, convective air movement between panes is lessened, slowing the transfer of heat between the inside and outside panes. Argon gas won’t expand or contract, but glass does, so the window unit must be properly sealed.
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