The Knoxville News-Sentinel reports that a trucker has sued the Knoxville, Tennessee-based manufacturer of a product intended to clear truck cabs of carbon monoxide. The trucker's $18 million wrongful death lawsuit alleges that the HVAC product was defective and instead sucked carbon monoxide from nearby idling trucks into their cab, killing her husband and causing her permanent and debilitating injuries. The married couple worked as long-distance haulers, typically sleeping in their truck cab. According to the News-Sentinel, the HVAC manufacturer declared bankruptcy in May, citing the potential multi-million award as a liability.