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  • Warming units designed to heat plastic eyeglass frames softening the material to allow the insertion or adjustment of lenses. These warmers typically consist of a unit that includes an electric heat source that provides heat to the frames using either hot air (i.e., hot air warmers) or a pan with either salt or glass beads. Plastic eyeglass warming units are usually temperature regulated in a range typically from 70 to 150 degrees Celsius (158 to 300 degrees Fahrenheit).
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