meter-dosed inhaler, also known as pump or allergy spray for asthma or copd and a blurry stethoscope, medical devices, copy space

inhaler meterdosed asthma medical device stethoscope diagnostic allergy spray breath lungs health care copd bronchitis medicine pharmacy disease emergency therapy bronchial pulmonary air aerosol chronic drug instrument pump equipment treatment cough object tool cartridge plastic concept science copy space selective focus meter-dosed known for blurry devices selected narrow depth field