Employees, unless exempt under Kansas Governor Executive Order #20-52, must wear masks in any public space inside a business, regardless of whether any members of the public are present.
A recommendation for prevention of the spread of the virus is, if the exempt person is in direct, close contact with the public or other staff, see if the person can be re-assigned to other duties that does not bring them in close contact with others.
If you're in a building in areas other people move through, such as hallways or stairways, you have to wear a mask while you're moving through those spaces.
If you're in a space where you're with other people and you cannot maintain six feet of distance, you need to wear a mask.
If you're in your private office alone, you don't have to wear a mask. If another person comes into your office, then you and the other person need to wear masks.
Masks are required at all times in businesses that package or prepare food for sale or distribution.