allergy
asthma
asthmatic
background
breathing
bronchial
care
cough
depth
device
dilator
drug
equipment
exhalation
exhale
health
help
human
ill
illness
inhalation
inhale
inhaler
lung
medical
medication
medicine
oxygen
patient
pills
prevention
protection
relieve
respiration
respiratory
safety
shallow
sick
spraying
top view
valve