Classroom Light Filters, Blue Circles, 2 pack

Two-pack of heat resistant light filters reduce glare and flickering, creating a calming work environment. Perfect for classroom, library, and office environments! Filters are flame retardant and attach to standard ceiling fluorescent light fixtures with super-strong, built-in magnets that keep filters in position. Includes Certificate of Conformance for flame retardancy. Blue, patterned light filters measure 4'L X 2'W each.