A PLOS ONE study tested the real-world filtration efficiency of cloth masks, medical masks, and respirators, revealing large ...

Mount Spurr, which scientists say is likely to erupt in the coming weeks or months, is about 80 miles west of Anchorage. But ...

The company’s turbines — enough to power 280,000 homes — run without emission controls in an area that leads Tennessee in ...

Please make CSA-approved CA-N95, KN95, and/or NIOSH N95 respirator masks free and available at all schools and on all school ...

One modeling system finds some pockets where oak ... consider wearing a high-quality N95 or KN95 mask, which can help filter out the pollen and keep you breathing easier. Wearing a hat or other ...