ISO 9241-7 compliant and proven to increase monitor performance. Eliminate glare up to 99 percent to help prevent eyestrain and headaches related to computer monitor use. Blocks up to 99.9 percent of VLF/ELF E-Field radiation and reduces static and dust build-up when properly grounded. Optimal tint glass enhances contrast and provides more accurate color representation. Meets AOA specifications for VDT glare reduction. Assembly-free flat frame.