The couple donated 80,000 N-95 masks to healthcare workers, firefighters, police officers, and other first responders in Texas and Louisiana.
"We are passionate about helping first responders from our hometown Austin - Texas, Louisiana and nationwide as we combat this national pandemic," wrote Camila in an Instagram post.
An Austin fire station even captured a surprise visit from the celebrity couple, who dropped off about 1,000 masks.
The McConaugheys teamed up with the BStrong organization, led by former Real Housewives star Bethenny Frankel, which is working directly with manufacturers to get personal protective equipment sent to people and hospitals across the country.
READ ALSO: Matthew McConaughey plays virtual bingo with Austin seniors
Matthew McConaughey's virtual bingo game with seniors