Mold in your house!
In virtually every bathroom renovation, mold is found.
Exposure to mold may cause many health effects including stuffiness, shortness of breath, throat irritation, coughing or wheezing, eye irritation, skin irritation, and an increase in asthma issues. Some studies even show a potential link to the development of asthma in children. Those who may have a compromised immune system can even develop serious lung infections.