The research article presents the data collected from a questionnaire based survey that aimed to evaluate patients’ expectations, perceived quality, satisfaction with hospital care and financial ability of 202 hospitalized patients suffering from acute or chronic respiratory diseases. The anonymous and self-completed questionnaire was divided in two parts. The first part included questions to elicit information on social and demographic characteristics (gender, age group, education level, categorization of respiratory disease, evaluation of the current hospitalization, nationality and way of living with). The second part included the 26-items Elderly Patient Satisfaction Scale and the 12-items Financial Ability Scale, which are validated in the Greek language with a high internal consistency. Data were collected from February 2016 to December 2018.