To curb the transmission of COVID-19, the Centers for Disease Control and Prevention (CDC) has recently begun to recommend using a cloth face covering when you’re out in public. But why exactly is ...

We're basically used to wearing face coverings while out and about at this point, and you may have noticed that several masks have a small slot to place a filter for extra protection. Adding a filter ...

Editor’s note: As we will report below, experts agree that face masks with filters — and without — do not replace or relieve the need to wash your hands and practice safe social distancing, and they ...