An anonymous reader quotes a report from TechCrunch: Elon Musk has previously touted the "Bioweapon Defense Mode" boasted by Tesla's vehicles, which are designed to provide excellent air quality inside the car even in the face of disastrous conditions without, thanks in part to high-efficiency HEPA air filtration. Now, Musk has said on Twitter that he hopes to one day provide similar air filtration along with home HVAC systems. Tesla, while primarily an automaker, is also already in the business of home energy and power generation, thanks to its acquisition of SolarCity, its current production of solar roofing products and its business building Tesla batteries for storage of power generated from green sources at home. While it hasn't yet seemed to make any moves to enter into any other parts of home building or infrastructure, HVAC systems actually would be a logical extension of its business, since they represent a significant part of the overall energy consumption of a home, depending on its heating and cooling sources. Boosting home HVAC efficiency would have the added benefit of making Tesla's other home energy products more appealing to consumers, since it would presumably help make it easier to achieve true off-grid (or near off-grid) self-sufficiency.Read more of this story at Slashdot. Click here to read full news..