Lungtest 500 spirometer is a small portable electronic instrument designed for use in physician practices and out-patient clinics. A spirometer contains a built-in specialized computer for performing tests and developing results and an accurate measurement unit. A patented replaceable pneumotach headpieces protect patients against infections. Basic advantages: automatic control of performed tests according to ERS recommendations confirmed with a printed message: ãTest performed according to ERS recommendationsÓ sound signal if time is exceeded by 3 seconds upon recording of forced exhalation modern pneumotach headpieces (1) immediately ready-to-use after replacing a headpiece easily readable LCD for observation of diagrams and tables of result in real time and after the test data transmission to any PC working in Windows environment (2) full keyboard for entering patient data and test comments possibility to enter and save a header of your institution (3 verses, 40 signs each) possibility of entering a comment to a test in progress comparison of the results with predicted values connection to a computer printer (3) or thermal printer (4) database with capacity of 100 tests comparison of test results small size and low weight