masked teacher sitting on floor showing masked students something on a tablet
Does Science Support Lifting School Mask Mandates?
The CDC has given the OK to lift indoor mask mandates in much of the US, and a growing number of states no longer require face coverings in schools. But most experts agree that masks slow school spread of SARS-CoV-2, and whether now is the right time to allow teachers and students to unmask is a matter of debate.
Does Science Support Lifting School Mask Mandates?
Does Science Support Lifting School Mask Mandates?

The CDC has given the OK to lift indoor mask mandates in much of the US, and a growing number of states no longer require face coverings in schools. But most experts agree that masks slow school spread of SARS-CoV-2, and whether now is the right time to allow teachers and students to unmask is a matter of debate.

The CDC has given the OK to lift indoor mask mandates in much of the US, and a growing number of states no longer require face coverings in schools. But most experts agree that masks slow school spread of SARS-CoV-2, and whether now is the right time to allow teachers and students to unmask is a matter of debate.

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Woman waiting in line at the airport, carrying a bag and standing next to two other suitcases. She is wearing a N95 face mask.
SARS-CoV-2 in the Air: What’s Known and What Isn’t
Alejandra Manjarrez | Feb 18, 2022
Evidence suggests that COVID-19 is primarily an airborne disease. Yet the details of how transmission occurs are still debated and frequently misunderstood.
photograph of a woman wearing a face mask embedded with SARS-CoV-2 sensors
Researchers Create Pathogen-Sensing Face Mask
Annie Melchor | Jul 5, 2021
The masks contain freeze-dried, cell-free biosensors, enabling them to detect pathogens including SARS-CoV-2.
laser imaging, methods, Duke Health, COVID-19, SARS-CoV-2, pandemic, coronavirus, masks, safety, health, aerosols, droplets, saliva
Simple Tool Evaluates Mask Performance at Blocking Droplets
Amanda Heidt | Aug 12, 2020
A proof-of-concept study finds some commonly used facial coverings may perform worse than no mask at all.
How Face Masks Can Help Prevent the Spread of COVID-19
Diana Kwon | Jul 8, 2020
As communities and businesses reopen amidst the pandemic, masks—in addition to other social distancing measures—are crucial for preventing new outbreaks.
Infographic: What We Know About How Masks Can Slow Disease Spread
Diana Kwon | Jul 8, 2020
Not all masks are created equal, and how they are worn makes a difference too.
N95 Respirators Can Be Decontaminated from SARS-CoV-2
Amy Schleunes | Apr 19, 2020
Vaporized hydrogen peroxide is the most effective decontamination method for masks that had been exposed to the coronavirus in a recent study.
n95 mask coronavirus covid-19 sars-cov-2 ppe personal protective equipment face shield respirator virology research lab scientists
Some Coronavirus Researchers Are Running Low on Masks
Katarina Zimmer | Apr 1, 2020
A large-scale shortage of respirators and face shields threatens progress in some labs that are currently trying to ramp up their studies of SARS-CoV-2.