- transparent plate can be re-installed in 3 seconds while the headband is still attached to the head
- no processing of the transparent plate is required
It is a face shield to prevent splash infection of COVID19. The feature is that no processing of the transparent plate is required and the transparent plate can be installed in three seconds while the headband is still attached to the head. An unprocessed A4 size (about 0.4mm) transparent plate is inserted between the outside and inside of the frame (inserted through a cut in the center). Plenty of transparent plates are available, so you can economically handle frequent replacement applications. It works in resource-constrained situations where it cannot be disposed of.