The SAR (specific absorption rate) of Mac computers quantifies the user's maximum exposure level to electromagnetic waves, for a limb or the trunk. French regulations require that the SAR does not exceed 2 W/kg for the trunk and 4 W/kg for the limbs. Testing conducted by Apple in October 2020 on MacBook Air prototypes equipped with the Apple M1 chip and an 8-core GPU, configured with 8 GB of RAM and a 512 GB SSD. The Wireless Web Browsing Test measures battery life through wireless viewing of 25 popular websites, with screen brightness set 8 clicks from the lowest level. The video playback test on the Apple TV app measures battery life while playing 1080p HD content, with the screen brightness set 8 clicks from the lowest level. Battery life varies depending on configuration and usage. Se.
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