刮痕修復 其他服務
Home » Indoor Environmental Quality » EMF Radiation Protection » Information » What is EMF
Services & Product
Links

 

 

 

What is EMF

What is EMF

Have you felt tired, dizzy or anxious in indoor areas? All these symptoms may be caused by electromagnetic radiations (EMF) which are invisible to bare eyes. You may even suffer from “Electromagnetic Wave Hypersensitivity Syndrome”.

In 2011, WHO had classified electromagnetic radiations as “2B Carcinogen”. The studies found that EMF generated by cell phones may be carcinogen.

Besides, EMF will have negative effects on various parts of human body, such as eyes, ears, central nervous systems, cardiovascular system and reproductive system.


1. What is EMF Radiation?

Electromagnetic waves (EMF), which is a kind of radiation, is used to transmit energy / information. Ultraviolet, infra-red, radio FM, X-ray, etc in everyday life are the examples of EMF. And EMF sending and receiving signals for cell phones has the greatest impact on our health.

Nowadays the mobile communication business is developed very well. In order to provide a more stable and wider-covered network, more and more transmitting stations are built in different locations. It not only facilitates a better communication, but also means that more and more EMF exists in the environment. It makes us really hard to escape from the threat of exposing to EMF.


2. Where does EMF Radiation come from?

Two types of EMF Radiations: High-frequency EMF and Low-frequency EMF

Source of High-frequency EMF:
e.g. cell phone transmitting station, wireless network, radio, TV broadcast, radar and microwave oven　 (The transmission power of EMF is about thousand to ten thousand uW/ ㎡, which is much higher than the 5 uW/ ㎡ standard suggested by the Building Biology in Germany.)



Source of Low-frequency Magnetic Field:
e.g. the magnetic fields produced by electricity, electric wires, electrical appliances, transformers, switchboards, motors, etc (The transmission power of EMF is about ten to hundred mG, which is much higher than the 1mG standard suggested by the Building Biology in Germany.)

Source of Low-frequency Electric Field:
e.g alternating current (AC), electric wires, electrical appliances, etc (Building Biology in Germany suggests the safety standard should be below 5V/m. )