3M Privacy Filter for Microsoft Surface Book (PFNMS001) 3M Privacy Filters blackout side views quickly, delivering privacy and helping keep visual hackers in the dark. Designed to fit Microsoft Surface Book 3M's thinnest privacy filter allows consistent, high-quality touch responsiveness for your device. Designed with advanced microreplication technology, creates an excellent viewing experience on your high resolution display. Minimizes distracting screen glare and mirror-like reflections in office environments