The 3M privacy screen filter for 13. 7" Microsoft ® Surface Pro 3/Pro 4, offers an optimized viewing experience for high resolution displays. This privacy filter with micro-replication technology minimizes distracting screen glare and mirror-like reflections in office environments. It offers high-quality touch responsiveness for your device and helps to reduce smudges/fingerprints on the device's display. This privacy filter reduces 35-percent of blue light transmission from the display. It is great to maintain screen privacy in high traffic areas like open work spaces, airports, airplanes and other public places. This privacy filter with a satin finish keeps your touch screen smooth to the touch. How to measure your screen . Both the filter and adhesive attachment strips are washable to remove any dirt or debris. Helps reduce glare and mirror-like reflections which makes your screen easier to use in high-glare situations. Comes with 1 year limited warranty. Will not affect touch screen functionality. Decrease 35 percent of blue light transmission from the display and maintain your touchscreen smooth to the touch with a satin finish. Custom fit to your Microsoft® Surface™ Pro 3. Perfect for helping maintain screen privacy in high traffic areas such as open work spaces, airports, airplanes, coffee shops and other public places. Designed with advanced microreplication technology to offer an excellent viewing experience on your high-resolution display. Filter protects your display from scratches and the rigors of daily use. Cleans easily with a soft cloth and water. Limited 1-year warranty. Lightweight, thin, frameless design. Bubble-free application allows the filter to be quickly and easily applied and reapplied numerous times.