Now, Great Lakes Window brings proven European technology to America with low maintenance Easy-Clean Glass. Easy-Clean Glass is a remarkable advancement in glass and window technology that eliminates frequent, strenuous and expensive exterior window cleaning. Easy-clean Glass works the same way on glass as Teflon does on cookware. A special dirt-repelling coating, applied at our facility, chemically bonds with the window glass, protecting it from contaminants and drastically reducing the need and difficulty of repeated cleaning. In fact, windows with special Easy-Clean Glass require washing half as often and with half the effort as windows with ordinary glass.