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    Senior woman with nasal cannula with eyes closed, close-up. — Stock Photo
    Senior woman with nasal cannula with eyes closed, close-up.
    Young boy with asthma problems making inhalation with mask on his face.( — Stock Photo
    Young boy with asthma problems making inhalation with mask on his face.(
    Caring woman using pulse oximeter on finger of ill boy in oxygen mask using nebulizer during inhalation at home — Stock Photo
    Caring woman using pulse oximeter on finger of ill boy in oxygen mask using nebulizer during inhalation at home
    Oxygen pressure gauge on cylinder of medical oxygen. — Stock Photo
    Oxygen pressure gauge on cylinder of medical oxygen.
    Content mother putting on oxygen mask on face of son for inhalation procedure while sitting on sofa at home — Stock Photo
    Content mother putting on oxygen mask on face of son for inhalation procedure while sitting on sofa at home
    Measuring oxygen levels in blood with pulse oximeter. — Stock Photo
    Measuring oxygen levels in blood with pulse oximeter.
    Activated T lymphocytes and red blood cells on scanning electron micrograph. — Stock Photo
    Activated T lymphocytes and red blood cells on scanning electron micrograph.
    Doctor holding oxygen mask over patient's face in intensive care unit — Stock Photo
    Doctor holding oxygen mask over patient's face in intensive care unit
    Loving mother with infrared thermometer measuring temperature of boy breathing in oxygen mask during inhalation procedure and watching cartoon on tablet at home — Stock Photo
    Loving mother with infrared thermometer measuring temperature of boy breathing in oxygen mask during inhalation procedure and watching cartoon on tablet at home
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Crop unrecognizable loving mother with infrared thermometer measuring temperature of boy breathing in oxygen mask during inhalation procedure and watching cartoon on tablet at home — Stock Photo
    Crop unrecognizable loving mother with infrared thermometer measuring temperature of boy breathing in oxygen mask during inhalation procedure and watching cartoon on tablet at home
    Close up of a hand putting a pulse oximeter on someone's finger. — Stock Photo
    Close up of a hand putting a pulse oximeter on someone's finger.
    Crop unrecognizable woman using modern pulse oximeter on finger of kid for measuring oxygen level in blood — Stock Photo
    Crop unrecognizable woman using modern pulse oximeter on finger of kid for measuring oxygen level in blood
    Female doctor wearing mask anesthetizing mid adult man in hospital ward — Stock Photo
    Female doctor wearing mask anesthetizing mid adult man in hospital ward
    Red blood cells — Stock Photo
    Red blood cells
    Astrocyte glial nerve cell, digital illustration. — Stock Photo
    Astrocyte glial nerve cell, digital illustration.
    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
    Crop unrecognizable veterinarian measuring pulse of cat with blood oxygen meter during operation in clinic — Stock Photo
    Crop unrecognizable veterinarian measuring pulse of cat with blood oxygen meter during operation in clinic
    Philippines, Boracay Island. White Beach. — Stock Photo
    Philippines, Boracay Island. White Beach.
    Crop unrecognizable loving mother with infrared thermometer measuring temperature of boy breathing in oxygen mask during inhalation procedure and watching cartoon on tablet at home — Stock Photo
    Crop unrecognizable loving mother with infrared thermometer measuring temperature of boy breathing in oxygen mask during inhalation procedure and watching cartoon on tablet at home
    Doctors pushing emergency stretcher bed in corridor at hospital — Stock Photo
    Doctors pushing emergency stretcher bed in corridor at hospital
    Side view unrecognizable person in silver costume with breathing apparatus and hose attached to potted plant sitting on chair in weathered abandoned house room — Stock Photo
    Side view unrecognizable person in silver costume with breathing apparatus and hose attached to potted plant sitting on chair in weathered abandoned house room
    Blood oxygen monitor on finger of patient in intensive care ward, close-up. — Stock Photo
    Blood oxygen monitor on finger of patient in intensive care ward, close-up.
    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 in oxygen mask using nebulizer during inhalation while sitting on sofa and reading book — Stock Photo
    Boy in oxygen mask using nebulizer during inhalation while sitting on sofa and reading book
    Elementary age asthmatic girl wearing oxygen face mask. — Stock Photo
    Elementary age asthmatic girl wearing oxygen face mask.
    Close up of rapids in a mountain river with long exposure effect — Stock Photo
    Close up of rapids in a mountain river with long exposure effect
    Measuring oxygen levels in blood with pulse oximeter. — Stock Photo
    Measuring oxygen levels in blood with pulse oximeter.
    Crop unrecognizable doctor measuring blood oxygen of patient with heart rate monitor at table with stethoscope in clinic while using laptop — Stock Photo
    Crop unrecognizable doctor measuring blood oxygen of patient with heart rate monitor at table with stethoscope in clinic while using laptop
    Paramedics examining injured boy on street — Stock Photo
    Paramedics examining injured boy on street
    Paramedics examining injured boy on street — Stock Photo
    Paramedics examining injured boy on street
    Pilot in mask operating airplane during flight — Stock Photo
    Pilot in mask operating airplane during flight
    Red blood cells aggregated — Stock Photo
    Red blood cells aggregated
    Team of surgeons performing operation in operation theater at hospital — Stock Photo
    Team of surgeons performing operation in operation theater at hospital
    Side view of diverse male patients interacting with each other while relaxing on the bed in the ward at hospital. — Stock Photo
    Side view of diverse male patients interacting with each other while relaxing on the bed in the ward at hospital.
    Hands of doctor placing oxygen mask on a pregnant woman face in operating room — Stock Photo
    Hands of doctor placing oxygen mask on a pregnant woman face in operating room
    Surgeon holding oxygen mask in operation room at hospital — Stock Photo
    Surgeon holding oxygen mask in operation room at hospital
    Medical team examining pregnant woman during delivery in operating room — Stock Photo
    Medical team examining pregnant woman during delivery in operating room
    Young boy sitting and inhaling through a oxygen mask at home. — Stock Photo
    Young boy sitting and inhaling through a oxygen mask at home.
    Doctor and paramedics examining a patient in emergency room at hospital — Stock Photo
    Doctor and paramedics examining a patient in emergency room at hospital
    Doctor and ward boy pushing senior patient on stretcher in hospital corridor — Stock Photo
    Doctor and ward boy pushing senior patient on stretcher in hospital corridor
    Team of doctors putting oxygen mask on a male senior patient face in the hospital — Stock Photo
    Team of doctors putting oxygen mask on a male senior patient face in the hospital
    Scenic view of scuba divers swimming under water — Stock Photo
    Scenic view of scuba divers swimming under water
    Anesthesiologist holding oxygen mask over patients face in operating room — Stock Photo
    Anesthesiologist holding oxygen mask over patients face in operating room
    Surgeons adjusting oxygen mask on patient in operation theater of hospital — Stock Photo
    Surgeons adjusting oxygen mask on patient in operation theater of hospital
    Surgeons performing surgery in operating room — Stock Photo
    Surgeons performing surgery in operating room
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Doctor putting oxygen mask on patient in hospital — Stock Photo
    Doctor putting oxygen mask on patient in hospital
    Front view of mature mixed-race female patient sleeping in bed in the ward at hospital — Stock Photo
    Front view of mature mixed-race female patient sleeping in bed in the ward at hospital
    Man talking on mobile phone and paramedics examining injured boy on street in background — Stock Photo
    Man talking on mobile phone and paramedics examining injured boy on street in background
    Top view of crop unrecognizable doctor measuring blood oxygen of patient with heart rate monitor at table with stethoscope in clinic — Stock Photo
    Top view of crop unrecognizable doctor measuring blood oxygen of patient with heart rate monitor at table with stethoscope in clinic
    Top view of crop unrecognizable doctor measuring blood oxygen of patient with heart rate monitor at table with stethoscope in clinic — Stock Photo
    Top view of crop unrecognizable doctor measuring blood oxygen of patient with heart rate monitor at table with stethoscope in clinic
    Pilot in mask operating airplane during flight — Stock Photo
    Pilot in mask operating airplane during flight
    Boy home schooling with a medical mask on to protect from a virus — Stock Photo
    Boy home schooling with a medical mask on to protect from a virus
    Front view of diverse doctors interacting with patients in the ward at hospital — Stock Photo
    Front view of diverse doctors interacting with patients in the ward at hospital
    Front view of diverse male patients interacting with each other in the ward at hospital.Caucasian male patient lying in bed while mixed-race patient sits in wheelchair. — Stock Photo
    Front view of diverse male patients interacting with each other in the ward at hospital.Caucasian male patient lying in bed while mixed-race patient sits in wheelchair.
    Side view of Caucasian male patients sleeping on bed in the ward at hospital — Stock Photo
    Side view of Caucasian male patients sleeping on bed in the ward at hospital
    Close up of rapids in a mountain river with long exposure effect — Stock Photo
    Close up of rapids in a mountain river with long exposure effect
    Crop unrecognizable veterinarian measuring pulse of cat with blood oxygen meter during operation in clinic — Stock Photo
    Crop unrecognizable veterinarian measuring pulse of cat with blood oxygen meter during operation in clinic
    Little kid using inhaler in clinic during check up — Stock Photo
    Little kid using inhaler in clinic during check up