Many mobile labs will have a door at the side or rear of the vehicle, along with a ramp, wheelchair lift, or stairs. There will often be a small area near the door for reception or intake. Inside the vehicle, there is usually enough space to accommodate a small classroom, staff meeting, or a handful of patients and nurses. There may be lab equipment, chairs and benches, or computers and testing equipment, depending on the purpose of the mobile lab.  Many mobile labs also contain storage areas and racks or closets for equipment. Labs that are used for public health services or educational purposes may have larger seating areas and less storage space, while research lab units will often need multiple compartments for equipment and data collecting.