Some pros have asthma just in case, I got 2 years ago like five kind'a asthma attachs due to polen in the area (DC metro area), used an asthma inhalator with steroids (i believe the product is for people with asthma and emphysema) and no problems since. But in my case was due to a seasonal allergies, I would say that as long as you have your medicine around you shouldn't have problems, i race back in the day with two kids that had asthma also and so far they used the medicine thingy and never got problems, in a matter of fact now that i think it better probable one of them didnt even have asthma but a bad case of allergies that gets so bad that he was getting asthma symptoms as i got a couple of years ago. Wonder if pollen is pretty bad down there where u are.