2024年3月1日 · There are many different types of masks that have varying abilities to block viruses depending on their design and how well they fit against your face. Cloth masks generally offer lower levels of protection to wearers, surgical/disposable masks usually offer more protection, international filtering facepiece respirators (like KN95 respirators ...

Wearing a NIOSH Approved® respirator reduces your exposure to hazards in the air. Masks are a less protective option. Examples include barrier face coverings (BFCs), disposable face masks, and cloth masks. Disposable face masks and cloth …

2022年1月14日 · CDC has updated our consumer webpage describing the types of masks and respirators used to prevent the transmission of SARS-CoV-2. Masking is a critical public health tool to prevent the spread of COVID-19, and it is important to remember that …

2021年6月29日 · vaccinated continue to wear a mask and maintain physical distance when traveling. If you are not fully vaccinated and aged 2 or older, you should wear a mask in indoor public places. In general, you do not need to wear a mask in outdoor settings. In areas with high numbers of COVID-19 cases, consider wearing a mask in crowded outdoor settings and

2022年1月14日 · The Centers for Disease Control and Prevention on Friday updated its guidance on masks for the general public, now saying that people "may choose" to wear N95 and KN95 masks because they offer...

2021年4月19日 · CDC recently conducted a study in a laboratory that tested the performance of di"erent mask combinations. There are several easy methods to improve the performance of your mask. Visit CDC’s Improve the Fit and Filtration of Your Mask to Reduce the Spread of COVID-19 webpage to learn more.

The CDC provides an overview of various types of masks and respirators. In general, the most important things you can do are to choose a mask that fits well, and wear it consistently and properly when it is recommended or in situations that you are required to do so.

2021年4月6日 · CDC recommends that people wear masks in public settings, at events and gatherings, and anywhere they will be around other people.

2022年1月15日 · If you don't feel like waiting to score a free N95 mask from the federal government, here's what to know about how to buy a good one — and avoid the fakes. Plus, tips on how to fit them and wear...

A crowd of Bay Area Rapid Transit riders in June 2020 following CDC face mask guidelines at Milpitas station in Milpitas, California. A sign offering free COVID-19 face masks at a retailer in the United States. The wearing of non-medical face masks in public to lessen the transmission of COVID-19 in the United States was first recommended by the CDC on April 3, 2020, as …