What is SAR Value Of A Mobile Phone ? And why you should know it

SAR (Specific Absorption Rate) measures the amount of radio frequency (RF) energy absorbed by the body when using a mobile phone. SAR values are expressed in watts per kilogram (W/kg) of body tissue and measure the maximum amount of RF energy a person can be exposed to without harmful effects.

How To Calculate SAR Value

To calculate SAR, a dummy head or body is used to simulate the human head and body. The dummy head is filled with a liquid that has properties similar to those of human tissue, and the mobile phone is placed against the dummy head. The amount of RF energy absorbed by the dummy head is then measured and used to calculate the SAR value.

In the United States, the Federal Communications Commission (FCC) sets a SAR limit of 1.6 W/kg for the head and 1.6 W/kg for the body. In the European Union, the limit is set at 2 W/kg for the head and 0.08 W/kg for the trunk.

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Any Health Issue with SAR

There is an ongoing debate about the health effects of exposure to RF energy from mobile phones. Some studies have suggested a link between mobile phone use and increased cancer risk, while others have not found a clear association. The World Health Organization (WHO) states that “to date, no adverse health effects have been established as being caused by mobile phone use.”

However, some people are concerned about the potential health effects of long-term exposure to RF energy and may choose to reduce their exposure by using hands-free devices or texting instead of making calls, for example.

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To minimize your exposure to RF energy from your mobile phone, you can take the following steps:

Use a hands-free device.

Using a hands-free device, such as a Bluetooth headset or speaker, can reduce your exposure to your phone’s radio frequency (RF) energy. Many hands-free devices have features that allow you to take calls, listen to music, or use voice commands without touching your phone. If you use your phone frequently, consider investing in a hands-free device. This can help you stay connected while reducing your exposure to RF energy and protecting your health.

Text instead of call

Texting is a great alternative to calling when you need to communicate with someone. It is more convenient and reduces your exposure to your phone’s radio frequency (RF) energy. Additionally, you can use the dictation feature to type out a message without even touching your phone. So, the next time you need to communicate with someone, consider sending a text instead of making a call. This can help you stay connected while reducing your exposure to RF energy.

Reduce call time 

If you make calls, keep them brief. Long calls can increase your exposure to RF energy. Which can ultimately impact your ears and can also cause headaches,

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Use aeroplane mode 

When you activate aeroplane mode, your phone stops emitting RF energy as it turns off all wireless communication functions, such as Wi-Fi and cellular connectivity. This means you won’t be able to make or receive calls, send texts, or access the internet while in aeroplane mode.

However, you can still use your phone to play games, listen to music, or use other apps that don’t require an internet connection. So, to reduce your exposure to RF energy, consider putting your phone in aeroplane mode when you’re not using it.

Choose a low-SAR phone.

The lower the SAR value, the less RF energy is absorbed by your body. To find out a phone’s SAR value, you can check the specifications provided by the manufacturer or search for it online. When shopping for a new phone, consider choosing one with a SAR value of less than 1.6 W/kg, the maximum SAR level allowed by the Federal Communications Commission (FCC) in the United States. By choosing a low-SAR phone, you can help reduce your exposure to RF energy and protect your health.

Keep the phone away from your body.

It is recommended to keep your phone away from your body to reduce your exposure to radio frequency (RF). To minimize exposure, you should avoid carrying your phone close to your body, such as in your pocket or against your ear. Additionally, you can use the speakerphone or a wired headset when making calls, and you should avoid using your phone when it has a low signal, as this can increase the RF energy it emits.

Use a radiation-shielding case.

These cases are designed to reduce the amount of RF energy that reaches your body by blocking or absorbing the radiation. Many radiation-shielding cases are available, made from materials such as metal, special fabrics, and other conductive materials. When shopping for a radiation-shielding case, look for one certified by a reputable organization and tested to reduce RF exposure effectively. Using a radiation-shielding case can help reduce your exposure to RF energy and protect your health.

Limit the use of your phone. 

The longer you use your phone, the more RF energy you’re exposed to. So, if you want to reduce exposure, consider using your phone less often. This may mean limiting your time on calls, reducing the amount of time you spend scrolling through social media, or using your phone only for essential tasks. You can also set limits on your phone usage by using the built-in screen time tracking features or by downloading an app that helps you track and limit your phone usage. Limiting your phone usage can help reduce your exposure to RF energy and protect your health.

In conclusion, while the evidence on the health effects of mobile phone use is still inconclusive, taking steps to minimize your exposure to RF energy can reduce your exposure to any potential health risks.