A man wearing a blue shirt, black apron, eyeglasses, and a mask is handling food in a tray.
A person in appropriate institution protection works with meals.
Appropriate institution protection is a blue shirt, black apron, eyeglasses, and a mask.
A person is handling food in a tray.
A man is a person; the man is wearing a mask, which is not typical, but may be required for protection; and is handling a food tray, which is usually used to serve meals.