Patent ID: 7428848
Filing Date: 2008-09-30
Classification: G01N

Abstract:
1. An electrostatic air sampling device comprising: an electrostatic collection module comprising: an airflow chamber comprising an air passage having an air inlet and an air outlet; a means of drawing air into the air inlet, through the airflow chamber, and out through the air outlet; an ionization electrode located near the air inlet, the ionization electrode being capable of ionizing airborne particles; a conical outer electrode forming at least a part of the outer wall of the airflow chamber and having a larger diameter toward the air inlet and a smaller diameter toward the air outlet; a cylindrical, collection electrode, the exterior surface of which forms at least a part of the inner wall of the airflow chamber and upon which airborne particles are collected; and a power source operatively connected to the electrostatic collection module, said power source providing power to energize the ionization and outer electrodes.