This is designed to fit “Kids KN95 Face Mask Disposable - 50 Pack KN95 Kid Masks Children Small Size Kids Breathable KN95 Mask Mascaras KN95 Para Niños”.
It likely will work for other masks, but you also may need to adjust the sizing of the sticks and the base.
I printed in bone white PLA+, using 0.3mm layers and gyroid infill at 10%.
The author marked this model as their own original creation.