Research Highlights Health Risks from Home Appliances Emitting Harmful Particles
Recent research from South Korea, led by Professor Changhyuk Kim of Pusan National University, has identified small household appliances with electric heating coils and brushed DC motors as significant sources of ultrafine particles (UFPs) that may pose health risks. The study focused on common appliances such as hairdryers, toasters, and air fryers, which emit heavy metal UFPs that can settle deep into the lungs. The research highlights the importance of understanding indoor sources of airborne pollutants and their impact on public health. The study found that appliances with brushed DC motors or electric heating coils released significantly higher particle concentrations than those with brushless motors. These particles, containing heavy metals like copper and iron, can increase the risk of inflammation and cytotoxicity when inhaled. The findings emphasize the vulnerability of young children due to their smaller airways and higher deposition volume per body weight. 
