About Tech ProtectThere has never been an easier way to protect your critical electronics. EMP Bags are designed to protect against damaging EMP current. One cannot predict the size, strength, or proximity of an EMP, but by using our bags, electronics should be protected. It is our highest recommendation that you “nest” items inside multiple layers of protection for best results. This can be achieved by double bagging or storing your EMP bags inside a metal container. More layers = more protection.