Tesla released today more information about its HEPA air filter system to back its “Bioweapon Defense Mode” claim. The company details its testing process and how it came to implement a system inspired by the air filtration systems used in hospitals, clean rooms, and the space industry.

Update: CEO Elon Musk of course Tweeted some background on the story giving credit for the idea to Alphabet CEO Larry Page. 

The automaker describes some of the tests the system had to go through: expand full story