Abstract: Face masks are used worldwide to reduce COVID-19 transmission in indoor environments. Differently from face respirators, there are no standards methods for measuring the fraction of air ...

A masked group handed out riot gear at a protest in Los Angeles, raising questions about who’s escalating tensions—and why ...

June 6 (Reuters) - Airbus (AIR.PA), opens new tab has signed a contract to install infrared protection systems on 23 German Air Force A400M transport aircraft, the planemaker said on Friday.

Vienna-based gas fermentation startup Arkeon has filed for insolvency. In a LinkedIn post Thursday, cofounder and CEO Dr. Gregor Tegl explained: “While this is a difficult moment, I am incredibly ...

with a HEPA filter to keep air in specific rooms as clean as possible. Avoid burning anything indoors, such as candles, incense or wood. If you have to go outside, use a respirator or mask with ...

The beaked mask wasn’t just for show—it was packed with herbs to ward off “bad air.” Underneath it? One of the most haunting jobs in history. Rep. Nadler condemns Trump admin after staff ...

"Teams that say they're elite aren't elite until they start performing," Gen. Mark D. Kelly, the Air Force officer in charge of Air Combat Command, says in the new Netflix documentary film ...

The West Virginia Public Service Commission has created a task force consisting largely of gas and oil industry representatives and charged it with making recommendations to change the state’s ...

The U.S. Air Force Academy's class of 2025 is graduating on Thursday and the ceremony in Colorado Springs will include an air show from the famed Air Force Thunderbird demonstration jets ...