Abstract
An outdoor airborne mold survey was recently carried out in the Edmonton area revealing some previously unrecognized molds, especially Rhodotorula. Hormodendrum was by far the commonest mold identified and was present all year round. It was also revealing that outdoor molds were quite prevalent in the Edmonton area throughout all seasons of the year but certainly more prevalent in the spring and early summer months. It would seem wise to have outdoor mold surveys done periodically in one's own area of practice when one is using immunotherapy with them.