Bryan Johnson· Author
And the way to do that is to make sure that you have an adequate air filter with your HVAC system. Um, ideally one that uh that is a MV 13 or above. Um, which is just like the level of um of filtration that happens. Those 2.5 particles. And then ideally some carbon filters in the house too that can pick up um some of the more activated chemicals that can be in the air from smog and things like that.