I have always been able to smell asthma triggers and never thought this was even unusual. Once I went to stay in a cabin for a retreat and smelled the mold immediately. I can smell dust mites immediately. I can tell when I walk in a room whether or not I should walk right out again. I have mild, intermittent asthma, but that may possibly be because I can smell triggers and avoid them. Thank you for the article on smelling asthma triggers. I now know I am not weird. Ha-ha!