The specialists of the Centers for control and prevention of diseases of the USA are sure that this tool is ineffective if a person has dirty or greasy hands.
Disinfectants that contain alcohol, effectively combating coronavirus. To such conclusion experts of the Centers for control and prevention of diseases of the United States. They noted that these funds are used to destroy the infection within 30 seconds. The reason for this is that antiseptics is about 80 percent composed of ethanol or 75 percent of isopropyl alcohol.
In this regard, resources should be used correctly. Experts say that some antiseptic should be applied on the palm and RUB over the entire surface of both hands. This should be done before full drying of the gel. In total the procedure should take at least 30 seconds. In addition, the sanitizer must be rubbed on the back of hands, between fingers and under fingernails.
Scientists claim, these funds will not be effective if the person has dirty or greasy hands.