From a 2016 report on the economic costs of certain health issues caused by exposure to indoor dampness and mold in the U.S.
 
 
This researcher estimated the costs of allergic rhinitis, acute bronchitis and asthma caused by exposure to indoor dampness and mold in the U.S.40 He used two methods—cost of illness (COI) and willingness to pay (WTP). 
 
WTP measures the full cost to society, but WTP estimates are difficult to compute and rarely available. COI methods are more often used but less likely to reflect full costs.
 
Based on the data available, he estimates the total annual costs as follows:
 
Allergic Rhinitis $3.7 billion
Acute Bronchitis $1.9 billion
Asthma Morbidity $15.1 billion
Asthma Mortality $1.7 billion