The v-Chimp of South Park

The new Teslas have these amazing bio-defense HEPA filters. There's a bio-weapons defense mode in the new Tesla where you hit a button and the AQI comes down to 7. Even when I'm driving through the current smoke-laden Bay Area, why aren't those installed in every new house? The immune system that rises up is going to be inside that environment where that person might be empowered. When somebody snaps, as they have done in thousands of well-documented cases, they tend to grab the implements at hand with training they already have.