Regardless of whether your house is good, if a source point gets going upwind of you, whatever you do in your house doesn't matter. I never wanted to be trapped again without an escape route. That's why I bang away so hard on the need for an MECU. Nobody would think to plan for this. Nobody says to themselves, "I really need a camper, or some place I can move if my whole neighborhood goes bad.” The lucky ones are those who already have an RV. Hopefully it wasn't too badly contaminated, but very likely it is. After it's happened and people have gone the rounds of doctors who found nothing, and after they spent all their money trying to remediate their house when it was the whole area that put them under the power curve..... What are they going to do if they have no MECU? Well, I can tell you. They just go from hotel room to hotel room, from house to house, trying again and again to find a safe place to sleep. People who haven't gone through this yet have no idea how much they need one, if they are headed towards this kind of reactivity. The only people who can advise them in advance are those who have gone through it. -Erik (2008)