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    Female paramedic CPR training on dummy outdoors. — Stock Photo
    Female paramedic CPR training on dummy outdoors.
    Spring flowers representing unhealthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing unhealthy human lungs, conceptual studio shot.
    Side view of little boy with asthma using inhaler while lying down on sofa at home — Stock Photo
    Side view of little boy with asthma using inhaler while lying down on sofa at home
    Young woman closing eyes while meditating with Eagle arms while practicing yoga — Stock Photo
    Young woman closing eyes while meditating with Eagle arms while practicing yoga
    Pneumonia. X-ray of the chest of a patient with bacterial pneumonia (grainy white area, lower left) in the lower lobe of the right lung (left). — Stock Photo
    Pneumonia. X-ray of the chest of a patient with bacterial pneumonia (grainy white area, lower left) in the lower lobe of the right lung (left).
    Normal male anatomy — Stock Photo
    Normal male anatomy
    Illustration of rod-shaped bacteria inside alveoli of lungs causing lower respiratory tract infection. — Stock Photo
    Illustration of rod-shaped bacteria inside alveoli of lungs causing lower respiratory tract infection.
    Mature female doctor and female nurse examining patient's throat — Stock Photo
    Mature female doctor and female nurse examining patient's throat
    Sick boy getting inhalation treatment in clinic — Stock Photo
    Sick boy getting inhalation treatment in clinic
    Female paramedic CPR training outdoors. — Stock Photo
    Female paramedic CPR training outdoors.
    Side view unrecognizable person wearing silver costume with breathing apparatus and hose attached to potted plant standing in shabby abandoned room — Stock Photo
    Side view unrecognizable person wearing silver costume with breathing apparatus and hose attached to potted plant standing in shabby abandoned room
    Sinuses cavities structure and anatomy — Stock Photo
    Sinuses cavities structure and anatomy
    Sinuses cavities structure and anatomy — Stock Photo
    Sinuses cavities structure and anatomy
    Paramedic giving oxygen to injured girl at accident spot — Stock Photo
    Paramedic giving oxygen to injured girl at accident spot
    Top view of little boy with asthma using inhaler while lying down on sofa at home — Stock Photo
    Top view of little boy with asthma using inhaler while lying down on sofa at home
    Paramedic giving oxygen to injured woman at accident spot — Stock Photo
    Paramedic giving oxygen to injured woman at accident spot
    Female paramedic defibrillator training with dummy outdoors. — Stock Photo
    Female paramedic defibrillator training with dummy outdoors.
    Illustration of internal human organs. — Stock Photo
    Illustration of internal human organs.
    Elderly female athlete with closed eyes breathing fresh air during fitness training in countryside — Stock Photo
    Elderly female athlete with closed eyes breathing fresh air during fitness training in countryside
    Side view unrecognizable person wearing silver costume with breathing apparatus and hose attached to potted plant standing in shabby abandoned room — Stock Photo
    Side view unrecognizable person wearing silver costume with breathing apparatus and hose attached to potted plant standing in shabby abandoned room
    Boy sitting on hospital bed with breathing equipment. — Stock Photo
    Boy sitting on hospital bed with breathing equipment.
    Pneumonia caused by bacteria Moraxella catarrhalis, digital illustration. — Stock Photo
    Pneumonia caused by bacteria Moraxella catarrhalis, digital illustration.
    Fungi releasing allergic spores, 3d digital illustration. — Stock Photo
    Fungi releasing allergic spores, 3d digital illustration.
    Newborn body organs — Stock Photo
    Newborn body organs
    Healthy lungs and respiratory system — Stock Photo
    Healthy lungs and respiratory system
    Sinuses cavities structure and anatomy — Stock Photo
    Sinuses cavities structure and anatomy
    Red blood cells aggregated — Stock Photo
    Red blood cells aggregated
    Spring flowers representing unhealthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing unhealthy human lungs, conceptual studio shot.
    Side view of little boy with asthma using inhaler while sitting on sofa at home — Stock Photo
    Side view of little boy with asthma using inhaler while sitting on sofa at home
    Digital illustration of human alveoli on white background. — Stock Photo
    Digital illustration of human alveoli on white background.
    Lungs cancer, digital illustration showing malignant tumour in lung. — Stock Photo
    Lungs cancer, digital illustration showing malignant tumour in lung.
    Female paramedic with instructor CPR training on dummy outdoors. — Stock Photo
    Female paramedic with instructor CPR training on dummy outdoors.
    Human sinuses structure and anatomy — Stock Photo
    Human sinuses structure and anatomy
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Instructor helping female paramedic with CPR training outdoors. — Stock Photo
    Instructor helping female paramedic with CPR training outdoors.
    Human lungs with pneumonia and close-up of bacteria and viruses. — Stock Photo
    Human lungs with pneumonia and close-up of bacteria and viruses.
    Inhaling medicine. Senior woman using an inhaler with extension tube. — Stock Photo
    Inhaling medicine. Senior woman using an inhaler with extension tube.
    Paramedic giving oxygen to injured girl at accident spot — Stock Photo
    Paramedic giving oxygen to injured girl at accident spot
    Young mindful male with hands on chest and closed eyes meditating during yoga practice against wall with shades in soft sunlight — Stock Photo
    Young mindful male with hands on chest and closed eyes meditating during yoga practice against wall with shades in soft sunlight
    Anatomy of warrior 1 pose, or virabhadrasana 1. Computer illustration showing a male body with highlighted skeleton demonstrating the skeletal activity of this yoga posture. — Stock Photo
    Anatomy of warrior 1 pose, or virabhadrasana 1. Computer illustration showing a male body with highlighted skeleton demonstrating the skeletal activity of this yoga posture.
    Oxygen mask and tube on white background. — Stock Photo
    Oxygen mask and tube on white background.
    Elementary age asthmatic girl wearing oxygen face mask. — Stock Photo
    Elementary age asthmatic girl wearing oxygen face mask.
    Female paramedic CPR training outdoors. — Stock Photo
    Female paramedic CPR training outdoors.
    Peak flow meter and chart against white background. — Stock Photo
    Peak flow meter and chart against white background.
    3d illustration of a mitochondrion within a cell. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidase sugars and fats to produce energy — Stock Photo
    3d illustration of a mitochondrion within a cell. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidase sugars and fats to produce energy
    Respiratory system of adult — Stock Photo
    Respiratory system of adult
    Little kid using inhaler in clinic during check up — Stock Photo
    Little kid using inhaler in clinic during check up
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Doctors practicing tracheal intubation on infant training dummies. — Stock Photo
    Doctors practicing tracheal intubation on infant training dummies.
    Sad shirtless little boy sitting on hospital bed and holding orange balloon while representing concept of respiratory disease and treatment — Stock Photo
    Sad shirtless little boy sitting on hospital bed and holding orange balloon while representing concept of respiratory disease and treatment
    Anatomy of warrior 1 pose, or virabhadrasana 1. Computer illustration showing a male body with highlighted skeleton demonstrating the skeletal activity of this yoga posture. — Stock Photo
    Anatomy of warrior 1 pose, or virabhadrasana 1. Computer illustration showing a male body with highlighted skeleton demonstrating the skeletal activity of this yoga posture.
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants — Stock Photo
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Side view of young female pediatric doctor in medical mask doing inhalation treatment with nebulizer for little boy having respiratory problem in hospital — Stock Photo
    Side view of young female pediatric doctor in medical mask doing inhalation treatment with nebulizer for little boy having respiratory problem in hospital
    Pneumonia inflammatory condition of lung, digital illustration. — Stock Photo
    Pneumonia inflammatory condition of lung, digital illustration.
    Female paramedic CPR training on baby dummy outdoors. — Stock Photo
    Female paramedic CPR training on baby dummy outdoors.
    Human alveoli anatomy — Stock Photo
    Human alveoli anatomy
    Doctor practicing tracheal intubation on infant training dummy. — Stock Photo
    Doctor practicing tracheal intubation on infant training dummy.
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Female paramedic CPR training on baby dummy with instructor outdoors. — Stock Photo
    Female paramedic CPR training on baby dummy with instructor outdoors.