It would therefore be advantageous if there was a device available that could effectively shield people, animals and plants against harmful, adverse health consequences that may be inherent in prolonged or extended exposure to EMR.

• 较小的装置，诸如计算机、电视机、行动电话与微波炉，散发较少量的电磁辐射，但是对于人类仍会有显著的影响，因为人们与这些装置的距离更接近。