Add Sandra Bullock to the growing roster of celebrities stepping up to lend a hand to healthcare workers during the COVID-19 pandemic.

As People reports, Bullock’s boyfriend, Bryan Randall shared a photo on Instagram in which the masked actress can be seen standing behind a staffer at Children’s Hospital Los Angeles, along with 6,000 KN95 masks she donated.

In the caption to the pic, Randall writes that it was actually Bullock’s children, 10-year-old son Louis and 8-year-old daughter Laila, who had the idea to donate the masks.

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“Kids wanted to give masks. 6,000 of them went to the warriors on the front lines in downtown LA,” Randall wrote in the caption.

“Thank you Olivia at #adventistwhitememorial. Thank you Ricardo at #childrenshospitallosangeles,” he added. “Louis and Lailas note could not have said it better.”

He then joked of Bullock, “@masks.4.heros I’m not sure who that freak is in the background.”