From the Manufacturer
The 3M standard computer filter reduces glare for optimal, more comfortable viewing. The medium-tint glass enhances contrast and accuracy of color representation. The flat frame design fits 12-inch to 15-inch monitors (diagonally measured). Moreover, the computer filter protects your monitor from static and dust buildup, while blocking up to 99 percent of ELF/VLF E-field radiation.

The 3M standard computer filter comes with a one-year warranty.

Product Description
Eliminate the headaches and eyestrain caused by computer screen glare with these standard 3M anti-glare computer filters. Reduces glare by up to 90%, blocks up to 99.9% of harmful ELF/VLF E-field radiation and utilizes its light tinted glass for brighter graphics and sharper text. The 3M anti-glare computer filters also prevent static and dust buildup! Fits 13” and 15” monitors. Easy to attach with 3M’s patented hanger arms. Don’t let glare cause you headaches and strain. Eliminate the problem with 3M anti-glare computer filters.