The device also detects your hand with an infrared sensor, which you bring very close to your face. As soon as it detects movement, a small motor is triggered inside the bead. Thus, developers are trying to prevent COVID-19 from entering the body through the eyes, nose and mouth.
NASA specified that this jewelry should not be used instead of a mask and other personal protective equipment against coronavirus, but only with them. In addition, the developers promised to release models with a variety of colors.