Comparative Study Between the AirGoTM System and Standard Tests in the Assessment of the Respiratory Function

Primary endpoint: • To test the AirGoTM system's respiratory rate recording accuracy at rest and during physical exercise, as compared to standard tests. Secondary endpoints: * To test the accuracy of the AirGoTM system's derived respiratory parameters (tidal volume, minute ventilation, Tiffeneau-Pinelli index, FEV1 and VO2max) at rest and during physical exercise, as compared to standard tests. * To test comfort and subjects' compliance with the AirGoTM system during long term recording (24 hours).