A.Ellen Tohn of ERT Associates, an environmental consultant and a senior advisor to the Asthma Regional Council, replies: Asthma and allergies are related -- asthma is a breathing difficulty often brought on by an allergic reaction to certain triggers in the environment. There are some things you can do as a builder to help reduce asthma triggers, which can reduce the frequency and severity of attacks.

A few main allergens are responsible for most asthma attacks -- chiefly, dust allergens, pet dander, pests (especially cockroaches), and mold. You should try to build in a way that helps to reduce all of those. But many asthma sufferers are particularly sensitive to specific allergens, and you should ask clients with asthma to get their doctor's...

or Register to read the full article.