Air Sterilization Card. Easy To Use, take out the Virus Shut Out card attach it to the neck strap then simply wear it around your neck (or hang it in your office, work areas to help clean the space, The product will react with the air and begin to work as soon as it is removed from the outer pack, be sure not to open or puncture this pack until you are ready to use it.

Formulated with ClO2，it helps you to kill the germs in effect every day.

Product Features:
 Effectively stop the airborne particles, bacteria, and various epidemic viruses.
 It can be used daily after being opened, and its durability is up to 30 days.
 Suitable for adults and children