Bioweapon Experts Aren't Buying the Tesla Model X's Bioweapon Defense Mode 

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The air conditioning system in the new Tesla Model X has three modes: circulating air from outside the car, re-circulating air that’s already inside the cabin, and a “bioweapon defense mode,” triggered by a button on the dashboard, which creates positive pressure inside the cabin to keep outside particles at bay. So, does it work? We asked bioweapons experts for their take on Tesla’s panic button.