HYGICARD HYGICARD is made from antimicrobial brass, which is widely known to have natural antimicrobial properties, so germs and bacteria do not adhere well to metal. Its properties have been recognized by the EPA (Environmental Protection Agency)! It is also widely used in hospitals, door knobs, public toilets. Please Note: HYGICARD does not replace the need for correct hygiene practices, such as washing hands, which continue to be the basis for infection control. HYGICARD creates a physical barrier when you open doors and press the lift buttons, and helps minimize the risk of touching these surfaces and reducing the spread of pathogens.