classrooms don t have questions about temperature. some classrooms don t have windows - questions about temperature. some classrooms don t have windows that| classrooms don t have windows that open classrooms don t have windows that open some classrooms don t have windows that open. some classrooms classrooms don t have windows that open. some classrooms have - classrooms don t have windows that open. some classrooms have air- open. some classrooms have air conditioning open. some classrooms have air conditioning which open. some classrooms have air conditioning which is open. some classrooms have air conditioning which is set - open. some classrooms have air conditioning which is set to - conditioning which is set to recirculate conditioning which is set to recirculate the conditioning which is set to recirculate the air, - conditioning which is set to recirculate the air, and - conditioning which is set to| recirculate the air, and that conditioning which is set to -