Kapsolo 2-way privacy filter prevents visual hacking from the left and right with a 60% viewing angle. The adhesive privacy filter is attached directly to the screen as per the installation video guide. This Kapsolo privacy filter covers the entire screen, edge to edge, or standard screen size. The privacy filter stays permanently in place, leaves no bubbles, and does not move when you are moving or closing your device. The filter can be removed without any residue. It provides safety from prying eyes everywhere: on the train, bus, flight, at the airport, office, conference room, café, school, or home. You can use your mobile, laptop, or monitor with zero concerns. It protects your sensitive, confidential, and private data from visual hacking, allowing you to be productive and comfortable anywhere. It minimizes blue light by up to 50%. The touch screen, HD display, and dual screen functionality remain 100% the same. In addition to screen protection, the filter also protects your screen from scratches, is shock and drop resistant, and makes dirt, stains, and fingerprints easy to remove.