2-way privacy filter for the Microsoft Surface Laptop 7- 13.8" 2-way filter limits viewing angle to ±30° Detachable 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 Supports compliance with the EU General Data Protection Regulation (GDPR)