“We do encourage all Americans to wear a well-fitting mask to protect themselves and prevent the spread of COVID 19,” she said. “And the recommendation is not going to change.”

Walensky acknowledged the CDC’s website is “in need of updating right now” to include information on the “different levels of protection different masks provide,” including the improved filtration of KN95 and N95 masks.

“We want to provide Americans with the best and most updated information to choose what mask is going to be right for them,” she said.

“What I will say is the best mask that you can that you wear is the one that you will wear and the one you can keep on all day long that you can tolerate in public indoor settings and tolerate where you need to wear it,” the CDC director added.