N95 respirators, the gold standard of filtration masks, are back in the pandemic spotlight because of the highly contagious Omicron Covid-19 variant. Unlike earlier in the pandemic, N95s are now ...

Video above: Face mask standards are coming to the US, but will they be strict enough? Federal authorities are investigating a massive counterfeit N95 mask operation in which fake 3M masks were sold ...

Federal authorities advise that as many as five states purchased fake N95 masks, stocking hospitals, medical facilities and government agencies with foreign-made knockoffs that put health workers at ...

3M announced Friday that two new production lines installed at its Aberdeen factory soon will increase production of N95 respirator masks due to high demand amid the coronavirus pandemic. The 3M ...

As multiple wildfires continue to burn across Canada and the western United States, millions of people are being exposed to hazardous levels of air pollution. “Smoke carries a lot of particulates, and ...

To help combat Omicron, the Biden administration is opening up more Covid testing sites and delivering 500 million Covid tests to Americans. WSJ’s Daniela Hernandez breaks down why testing is still a ...

More-infectious variants of the coronavirus and new federal requirements have people rethinking the quality of their face masks to prevent the spread of Covid-19 until more people can be vaccinated.

Shares of 3M Co. took a dive Tuesday, after the maker of personal safety, industrial and consumer products reported second-quarter earnings that fell short of expectations, as the negative effects of ...

Federal authorities are investigating a massive counterfeit N95 mask operation in which fake 3M masks were sold in at least five states to hospitals, medical facilities and government agencies.