Testing air for bird dander

My wife has been diagnosed with bird breeders lung and we are re-homing our birds. After we have cleaned the ducts and so on we are looking to have the air in our home tested for avian antigens. Does anybody know of a company that covers Seattle Washington that can do this kind of testing? Thank you Ron

Occupational Asthma, Worker, 12/21/2012, 12/21/2012,