Application:
1. Generate electricity in electric power system, radio station, TV station, telecommunication, communication, radar, navigation, stock exchange staff member, the computer, duplicator, medical equipment of electron, electron launch and meet staff members that transfered to.
2. Protect staff who works in the fields of welds, quenches, smelts, plastics hot jointly, food dryness, ultrashort wave physiotherapy.
3. Protect people who Frequently watch TV, use microwave oven, dust catcher, electric blanket, radio telephone etc.
4. Protect teenagers when operating the computer or playing electronic games.