As everyone knows, many electronic information processing equipment has strong electromagnetic leakage, these devices are in use, will make all kinds of information processing to a certain scattering to the space, then this is confidential information caused a great threat. Therefore, when we use electronic computers and other electronic information processing equipment, it will be very dangerous to deal with confidential information without timely and reliable technical measures.

The proper use of shielding room equipment, is a kind of electromagnetic wave leakage preventing information with effective and reliable measures, it can not only prevent the indoor computer and other electronic information processing of the confidential information processing device with electromagnetic wave leaked out, and can prevent the electromagnetic interference is strong on the outside.