Where can I go for more information?
The EPA maintains an excellent resource site for dealing with common indoor asthma triggers.
http://www.epa.gov/asthma/triggers.html
The Environmental Health Watch also has a comprehensive page on controlling common home asthma triggers.
http://www.ehw.org/Asthma/ASTH_Control_Triggers.htm
The Center for Disease Control and Prevention maintains and updates another good site about asthma.
http://www.cdc.gov/asthma/
The American Academy of Allergy, Asthma, and Immunology has a page on asthma in seniors located at http://www.aaaai.org/patients/seniorsandasthma/