N95, KN95, KF94, FFP2, M95i, M95c — the list goes on. What is this alphabet soup? If you have been shopping for high-filtration masks, then you know what I am talking about. School is back in session, ...

One common concern about cloth face masks is the level of filtration they provide. The fabric’s mesh is often too open to filter out smaller particles such as smoke, dust, or viruses. A popular ...

You’ve heard of N95 and KN95 masks — but have you heard of the KF94, and what’s the difference between the three? There are many high-quality masks on the market with different letters and numbers.

With another coronavirus variant racing across the U.S., once again health authorities are urging people to mask up indoors. Yes, you've heard it all before. But given how contagious omicron is, ...

Megan Cerullo is a New York-based reporter for CBS MoneyWatch covering small business, workplace, health care, consumer spending and personal finance topics. She regularly appears on CBS News 24/7 to ...

Sept. 7 (UPI) --New research, published Tuesday in the journal Physics of Fluids, suggests the use of nanofibers can improve the filtration efficiency of face masks, but they must be replaced fairly ...

N95, KN95, KF94, FFP2, M95i, M95c, M94k — the list is growing. If you have been shopping for high filtration masks, then this alphabet soup sounds familiar. With winter break over, COVID and other ...