3M Commercial Office Supply Div. Products - Filter, Antiradiation, Fits19"-21"Screen or 19"-20"LCD, Black - Sold as 1 EA - Antiglare/Radiation Filter features light-tint glass for improved contrast, reduces glare up to 99 percent and helps relieve eyestrain related to computer monitor use. Helps block VLF/ELF E-field radiation and reduces static charge when properly grounded. Filter includes LCD and CRT hanger arms. Sold as 1 EA Manufacturer: 3M Commercial Office Supply Div. Total percentage of recycled content: 0 Post Consumer Waste: 0 Country of origin: US