Research at a United Kingdom hospital filled with COVID-19 patients suggests portable HEPA filters effectively remove coronavirus particles from the air, a recent study showed. According to the study, ...

Virtually all carmakers use particulate filters in their diesel cars to meet the most stringent emissions standards. These filters trap particulate matter left over from the combustion process that ...

One of the prominent by-products of diesel combustion is particulate matter, which consists primarily of soot formed by unburned fuel. This soot, along with other particulate matter and combustion ...

Volkswagen has yet to get modifications to reduce the emissions of TDI diesel cars with illegal "defeat device" software approved by U.S. regulators. But while it continues to wrestle with that ...

The Volkswagen Group may be focused on going electric, but that doesn’t mean it’s abandoning internal combustion engines, especially if it can cut back on emissions. VW announced a new particulate ...