Clarifying mask confusion: N95, KN95, KF94, double-masking

N95, KN95, and KF94 masks differ in where they’re tested and approved, and what type of straps they have, says Dr. Abraar Karan, infectious disease physician at Stanford University.

N95, KN95, and KF94 masks differ in where they’re tested and approved, and what type of straps they have, says Dr. Abraar Karan, infectious disease physician at Stanford University. Photo by Shutterstock.

There’s been a lot of mask confusion during the COVID pandemic. What’s the difference between N95, KN95, and KF94? Is double-masking with a cloth and surgical mask effective?  

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From this Episode:

Credits

Host:

Madeleine Brand

Producers:

Sarah Sweeney, Angie Perrin, Michell Eloy, Amy Ta, Brian Hardzinski, Bennett Purser, Robin Estrin