There have some incidents happened in the history accidently or naturally that had caused damage to the electronic items but their reasons were unknown at that time but as the generation changed and science has acquired more specifications and information then the EMP and its effects have come into light. The EMP or the Electro Magnetic Pulse is considered as the reason for these events. This pulse is mainly the magnetic field generated by metal coil through alternating current. These can damage your electronic devices. If they are of very high voltage it can even damage power houses. But there are also ways to safeguard from these waves such as faraday cage, in which you can keep your daily electronic devices that are important for daily purposes like battery chargers, flash lights, radios, spare mobile or laptops. This container can keep them safe from any burst of EMP.
Why should you need this cage?
Since it can cause huge damage to any country that uses electric power mostly, some countries are working for using this EMP as some sort of weapon that they can burst to start a war or just making the economy fall down. If someday they attack your city with it or some natural EMP phenomenon occurs then you can save some of your electronic items if you are keeping them at a safe place. In your house you must be keeping flash lights, spare charger like anything at some place but instead you can buy anti EMP container and keep those in it. In this way, you can have a permanent place of keeping them and also safer place that can work where no other alike item is working near you.