LOS ANGELES -- The simple act of wearing a mask amid the ongoing COVID-19 pandemic has become a politically charged topic in the U.S. and across social media. Despite the urgings of public health ...

LOS ANGELES - The simple act of wearing a mask amid the ongoing COVID-19 pandemic has become a politically charged topic in the U.S. and across social media. Despite the urgings of public health ...

INDIANAPOLIS — Opponents of face masks have a long list of reasons for refusing to wear them. Some claim the masks are endangering their health. Keelin James said she’s required to wear a mask at work ...

INDIANAPOLIS — Opponents of face masks have a long list of reasons for refusing to wear them. Some claim the masks are endangering their health. Keelin James said she’s required to wear a mask at work ...

A venturi mask is most often used for patients who require a specific concentration of oxygen. The mask can deliver oxygen concentrations ranging 24%-60% with flow rates of 4-12 L/min. A 28% venturi ...