Removable 2-way privacy filter for 81.3 cm (32") monitors Narrows the field of vision on the screen to +/- 30 degrees Removable filter is easily applied and removed as needed Blue light reduction: filters out the harmful rays by up to 42 %, easing eye strain and aiding natural sleep patterns Anti-fingerprint coating: Keeps your screen clean and free of greasy marks and fingerprints Anti-glare: Reduces glare from any outside light sources