Tesla's HEPA air filter "hundreds of times" more effective than standard units

Electric car brand Tesla Motors [NSDQ:TSLA] says it is developed a HEPA air filtration system designed to clear up the outside world before it enters a vehicle's cabin. The filtering system is so clean that Tesla claims you could "survive a military grade bio attack" using it. HEPA, an acronym for "high-efficiency particulate arrestance", means... Tesla's HEPA air filter "hundreds of times" more effective than standard units