Some homeowners tend to be more delicate to those contaminants than Many others. Allergy and bronchial asthma sufferers, as well as youthful children and also the elderly, tend to be more susceptible to the categories of very poor indoor air excellent that air duct cleaning may help address. Picture: Tom https://www.google.com/maps/d/edit?mid=1xjP-SIbuMb6_2u8qqrU5evQy3li53g8&usp=sharing