1) particle size < 5um have greatest possibility of deposition in the lung, and particle with <2 um can reach up to alveoli, the partical wih 1um are largely exhaled out as they remain suspended in the air during respiration.
2) asthma- those who have onset in childrens- , wastern regions epithelial cells and smooth muscles
chronic obstructive pulmonary disease- old age people: neutrophils macrophages, T-lymphocytes, and dendritic cells
cystic fibrosis- myoepithelial cells, middle eastern regions beta- adrenergic- insensitive cell, beta - adrenergic sensitive cell .
3) soft mit inhaler: it creates a could of medicine that you inhale without the help of a propellant
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