The Antimicrobial Glass Screen Protector provides permanent antimicrobial functions, blu-ray eye protection, anti-fingerprint oil coating, and scratch resistance. Using Dual Ion Exchange Technology directly implanted into the glass, it permanently inhibits the growth of algae, microorganisms, molds, fungi, and other harmful bacteria. Other antimicrobial screen protectors may use laminate or surface coating which fades over time. Enjoy the peace of mind knowing you are always being protected. Double ion exchange technology (silver ion + copper ion) is used to allow silver ions to be implanted inside the glass to control the growth and activity of microorganisms, thereby permanently achieving the antibacterial effect. • Permanent antibacterial function • Blu-ray eye protection • Scratch resistant • Anti-fingerprint oil coating