The research shows that there are more bacteria on the phone screen, tablet screen than on the toilet. Defender+ screen protector is made of antimicrobial material (Ag+), can reduce 99%* of bacterial growth on your screen (SIAA, JIS Z 2801 & EPA approval). Defender+ has an excellent performance on anti-scratch, anti-fingerprint, and anti-smudges. With the cleaning kit inside the package, you can apply Defender+ easily by yourself. EPA Certified - 99% Reduction of Bacteria.