Blood-engorged Head Louse (image) University of Utah Caption This blood-engorged head louse is the sort that plagues many children and their families. University of Utah biologists developed chemical-free, warm-air device called the LouseBuster, which kills hatched lice and their eggs, according to a new study. The LouseBuster now is on the market after gaining government clearance. Credit Sarah Bush, University of Utah. Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.