Photo 1 of **USED** VizoBlueX 19-20 inch Anti-Blue Light Filter for Computer Monitor. Blue Light Monitor Screen 19 - 20 inch-

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Photo 1 of **USED** VizoBlueX 19-20 inch Anti-Blue Light Filter for Computer Monitor. Blue Light Monitor Screen 19 - 20 inch-Photo 2 of **USED** VizoBlueX 19-20 inch Anti-Blue Light Filter for Computer Monitor. Blue Light Monitor Screen 19 - 20 inch-