Keyture offers a variety of keyboard covers with an antimicrobial additive with silver ions, which prevents the spread of certain bacteria and viruses. Silver Glass kills 99.99% of bacteria and viruses The Silver Glass additive in anti-bacterial keyboard cases provides 24/7 protection. The active ingredient used to kill pathogens lasts the lifetime of each keyboard cover. Microbial pathogens do not develop resistance to the Silver Glass coating on all our keyboard covers. All our products are safe - for humans, animals and the environment.