Bronchial asthma, COPD, Emphysema, chronic bronchitis, Acute Bronchitis, Upper respiratory tract infections, COVID19, pneumonia, lung abscess, bronchiectasis, lung cancer, interstitial lung diseases, pulmonary hypertension, pulmonary embolism, pleural diseases, respiratory failure, sleep disorders, snoring, Pulmonary function tests, skin test for allergy, sleep study, bronchoscopy diagnostic and therapeutic