Literal question
H22. Do you have air-conditioning?
[] Yes, 1 individual room unit
[] Yes, 2 or more individual room units
[] Yes, a central air-conditioning system
[] No
"Count only equipment with a refrigeration unit to cool the air. Mark an individual room unit for air conditioners which are installed in a window or in an outside wall and are used to cool one or more rooms. Mark a central system for a central installation which cools the entire house or apartment."