The safety of an item is an important factor to consider when discussing its SAR value. Whether you’re shopping for a cellphone, wireless router, or other device that relies on radiofrequency (RF) energy to communicate, understanding its specific absorption rate (SAR) is critical to determining whether or not it is safe for you to use.
Introduction
The Specific Absorption Rate (SAR) is an important factor to consider when using mobile phones. It measures the amount of energy absorbed by the human body from radio frequency (RF) electromagnetic fields emitted by mobile phones. So, the question arises, which SAR value is safe for use?
What is SAR Value?
The Specific Absorption Rate (SAR) is the unit of measurement for the amount of radio frequency radiation (RFR) energy absorbed by the body when using a wireless device. The SAR value is expressed in watts per kilogram (W/kg) and is a measure of the rate of energy absorbed by the body when exposed to a radio frequency (RF) electromagnetic field. The SAR value is usually determined by testing the device in a controlled environment and is the maximum level of RF energy allowed to be absorbed by the body when using a mobile phone.
What is a Safe SAR Value?
The International Commission on Non-Ionizing Radiation Protection (ICNIRP) has established the recommended maximum SAR value for general public exposure to radio frequency (RF) electromagnetic fields from mobile phones as 2 W/kg. The SAR value for mobile phones sold in the United States must not exceed 1.6 W/kg when measured at the head and 4 W/kg when measured at the body.
Are Higher SAR Values Dangerous?
The ICNIRP guidelines are considered to be a safe limit for general public exposure to RF electromagnetic fields from mobile phones. However, there is still some debate among scientists regarding any potential health risks associated with higher SAR values. Studies have suggested that higher SAR values may be associated with an increased risk of certain types of cancer and other health problems, although more research is needed to confirm this.
Conclusion
In conclusion, the safe SAR value for general public exposure to radio frequency (RF) electromagnetic fields from mobile phones is 2 W/kg, as established by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). Although there is still some debate regarding any potential health risks associated with higher SAR values, it is generally considered to be a safe limit.
