Introduction
The SAR (Specific Absorption Rate) value of a device is an important factor to consider when selecting a device to use. SAR is a measure of the amount of radio frequency energy absorbed by the human body when using a device, such as a cell phone. It is important to know the SAR value of a device before using it, as too much exposure to radiation can have negative effects on the human body. In this article, we will discuss which SAR values are safe for the head and body when using a device.
What is SAR?
SAR is a measure of the amount of radio frequency energy absorbed by the human body when using a device. It is measured in watts per kilogram (W/kg) and is usually expressed as a range of values, such as 0.91-1.36 W/kg. The higher the SAR value, the more energy is being absorbed by the body. It is important to know the SAR value of a device before using it, as too much exposure to radiation can have negative health effects.
What is a Safe SAR Value?
The International Commission on Non-Ionizing Radiation Protection (ICNIRP) has established safe levels for human exposure to radiation from devices such as cell phones. For the head and body, the safe SAR value is 2.0 W/kg, averaged over 10 grams of tissue. This means that the average SAR value of a device should not exceed this value when used in close proximity to the head or body.
Do Different Countries Have Different SAR Levels?
Yes, different countries have different SAR levels. The US, Canada, and Europe have adopted the ICNIRP guidelines, which have a maximum SAR value of 2.0 W/kg averaged over 10 grams of tissue. However, some countries, such as India and China, have adopted different SAR levels. It is important to check the SAR value of a device before using it in a different country.
Conclusion
In conclusion, the SAR value of a device is an important factor to consider when selecting a device to use. The ICNIRP guidelines have set a maximum SAR value of 2.0 W/kg averaged over 10 grams of tissue for the head and body. It is important to know the SAR value of a device before using it, as too much exposure to radiation can have negative health effects. Different countries may have different SAR levels, so it is important to check the SAR value of a device before using it in a different country.
