President Donald Trump, who has often pushed back against mask guidance from health officials, says he would wear one “in a tight situation with people”.
Mr Trump – who has avoided appearing in public with a mask – also maintained masks do not need to become mandatory to curb Covid-19’s spread.
His remarks to Fox News come a day after Republicans in Congress called on Mr Trump to wear masks as an example.
A number of states are seeing surges in virus cases and deaths in recent days.
The US now has over 2.6 million confirmed Covid-19 infections and more than 127,000 deaths.
Speaking to Fox Business Network on Wednesday, Mr Trump said: “I’m all for masks.”
When asked whether he would wear one, the president said “if I were in a tight situation with people I would, absolutely”, adding that people have seen him wearing one before.
Mr Trump said he would have “no problem” with wearing a mask publicly and that he “sort of liked” how he looked with one on, likening himself to the Lone Ranger.
But the president reiterated that he did not think making face-coverings mandatory across the US was needed, because there are “many places in the country where people stay very long distance”.
“If people feel good about it they should do it.”
The Centers for Disease Control (CDC) in April began recommending people wear masks or cloth coverings in public to help stop the spread of the virus.
An ABC News/Ipsos poll found that in the last week, 89% of Americans said they wore a mask or face covering outside their home in the last week – a 20-point jump from mid-April.
But Mr Trump has repeatedly emphasised that choosing to follow the official health guidance around masks is a personal decision.
The White House has defended the president’s choice to avoid one by saying everyone in contact with him is tested frequently, along with Mr Trump himself.