In addition to innovative heat reducing technology and legendary sharp cutting performance to provide the user with the coolest and sharpest blade possible, these blades have built-in antimicrobial protection. AgION Antimicrobial Protection Protection is proven to be very effective in preventing the growth of a broad range of bacteria, mold and mildew. Elite Cryogen-X™ blades are even further optimized with a titanium coating increasing its overall surface hardness, making them the longest wear resistance blade offered by Oster®.