SAN FRANCISCO, Calif. (KRON) — The CDC recommends that people wear masks and face coverings in public settings to help prevent the spread of COVID-19.
Masks with exhalation valves or vents should not be worn to prevent the spread of COVID-19, the CDC said Friday.
Wearing a face mask helps prevent respiratory droplets from traveling into the air and onto other people when the person wearing the masks coughs, sneezes, talks or raises their voice — also known as source control.
But masks with one-way valves or vents allow air to be exhaled through a hole in the material, which can result in expelled respiratory droplets that can reach others.
These type of masks don’t prevent the person wearing the mask from transmission COVID-19 to others.
Masks are most likely to reduce the spread of COVID-19 when they are widely used by people in public settings.
Latest News Headlines:
- Arizona certifies 2022 election results amid threat of more GOP challenges
- Pfizer seeks FDA authorization for omicron vaccine in kids under 5
- San Jose youth counselor arrested for sexual assault of minor
- All lanes open after crash on Westbound I-80 snarls Bay Bridge traffic
- Idaho college killings: Roommates of slain students break their silence