1. The electromagnetic shielding room isolates external electromagnetic interference to ensure the normal operation of indoor electronic and electrical equipment. Especially in the measurement and testing of electronic components and electrical appliances, an electromagnetic shielding room (or dark room) is used to simulate an ideal electromagnetic environment, which improves the accuracy of the test results.

2. The process of blocking the electromagnetic radiation in the room from spreading to the outside world. Strong electromagnetic radiation sources should be shielded and isolated to prevent interference with the normal operation of other electronic and electrical equipment,